九州大学-研究者情報 [松本聡 (教授) 理学研究院地球惑星科学部門]

松本聡（まつもとさとし）

データ更新日：2023.06.09

教授　／　理学研究院地球惑星科学部門地震学・火山学

原著論文

1.	Yoshihisa Iio, Satoshi Matsumoto, Yusuke Yamashita, Shin'ichi Sakai, Kazuhide Tomisaka, Masayo Sawada, Takashi Iidaka, Takaya Iwasaki, Megumi Kamizono, Hiroshi Katao, Aitaro Kato, Eiji Kurashimo, Yoshiko Teguri, Hiroo Tsuda, Takashi Ueno, Spatial change in differential stress magnitudes around the source fault before intraplate earthquakes, Geophysical Journal International, 10.1093/gji/ggac521, 233, 2, 1279-1295, 2022.12, SUMMARY How are the sizes of the earthquakes determined? To solve this important problem, we analysed the data from a dense temporary seismic observation network installed in the aftershock area of the 2016 Mw 6.2 Central Tottori earthquake, which occurred in an intraplate region in Japan. We compared the stress field estimated from approximately 10 000 accurate focal mechanisms of aftershocks with the calculated post-earthquake stress field and found that the differential stress before the earthquake was very small near both horizontal edges. These results did not depend significantly on the modeled slip distribution and the orientation of the principal stress before the earthquake. Similar results were obtained for the 2000 Mw 6.7 Western Tottori earthquake, which also occurred in the same intraplate region in Japan. These results suggest that the fault size of large intraplate earthquakes can be determined by the region of small differential stress surrounding future earthquake faults..
2.	Matsuno, Miu, Tagami, Ayaka, Okada, Tomomi, Matsumoto, Satoshi, Kawamura, Yuta, Iio, Yoshihisa, Sato, Tadashi, Nakayama, Takashi, Hirahara, Satoshi, Bannister, Stephen, Ristau, John, Savage, Martha K, Thurber, Clifford H, Sibson, Richard H, Spatial and temporal stress field changes in the focal area of the 2016 Kaikōura earthquake, New Zealand: A multi-fault process interpretation, Tectonophysics, 10.1016/j.tecto.2022.229390, 835, 229390, 2022.07, 責任著者として執筆を代理で行った.
3.	Benjamin A. Heath, Donna Eberhart-Phillips, Federica Lanza, Clifford Thurber, Martha K. Savage, Tomomi Okada, Satoshi Matsumoto, Yoshihisa Iio, Stephen Bannister, Fracturing and pore-fluid distribution in the Marlborough region, New Zealand from body-wave tomography: Implications for regional understanding of the Kaikoura area, EARTH AND PLANETARY SCIENCE LETTERS, 10.1016/j.epsl.2022.117666, 593, 2022.09, Relative to more mature fault zones, immature fault zones that have accumulated smaller total displacement are characterized by less efficient strain localization and more complicated earthquake ruptures. How differences in maturation are reflected in regional-scale upper-crustal fracturing is not well known. Recently, complicated earthquake ruptures associated with immature fault zones, such as the 2016 Kaikoura earthquake in New Zealand, have occurred in areas that are in regional proximity ( 3% elevated fracture porosity compared to the adjacent area to the north. The elevated regional fracturing in the Kaikoura area is interpreted to result from more distributed deformation, and broader distribution of earthquakes, due to inefficient localization of strain from a regionally uniform strain rate field, highlighting the relationship between relative maturity of upper-crustal fault zones and lateral variability of regional upper-crustal properties. Plain language summary: When earthquakes occur in immature fault zones (areas that have accumulated small total displacement), they tend to rupture multiple poorly developed faults of diverse orientations. In contrast, more mature fault zones are associated with more developed, smoother faults and more localized earthquake activity. How these differences in maturation are reflected in the regional distribution of fractures is not well known. Here we use the arrival times of P and S waves from earthquakes to constrain seismic velocities (Vp and Vp/Vs) and use numerical models to relate seismic velocities to fracture concentration. We focus on the Marlborough region of the South Island, New Zealand, where immature fault zones recently ruptured during the 2016 Kaikoura earthquake but which also has more mature fault zones
4.	Kortink, M., A. Yates, M Savage, W. Wang, T. Okada, S. Matsumoto, Y. Iio, K. Jacob, Velocity changes around the Kaikoura earthquake rupture from ambient noise cross-correlations, Geophysical Journal International, https://doi.org/10.1093/gji/ggab514, 2021.06.
5.	Iio, Y., S. Matsumoto, Y. Yamashita, S. Sakai, K. Tomisaka, M. Sawada, T. Iidaka, T. Iwasaki, M. Kamizono, H. Katao, A. Kato, E. Kurashimo, Y. Teguri, H. Tsuda, and T. Ueno, Stress relaxation arrested the mainshock rupture of the 2016 Central Tottori earthquake, Commun Earth Environ, https://doi.org/10.1038/s43247-021-00231-6, 2021.06.
6.	Nakagomi, K., T. Terakawa, S. Matsumoto, S. Horikawa,, Stress and pore fluid pressure control of seismicity rate changes following the 2016 Kumamoto earthquake, Japan., Earth Planets Space, https://doi.org/10.1186/s40623-020-01329-5, 73, 2021.06.
7.	Kato. A., S. Sakai, S. Matsumoto, and Y. Iio, Conjugate faulting and structural complexity on the young fault system associated with the 2000 Tottori earthquake, Comm. Earth & Environment, 10.1038/s43247-020-00086-3, 2021.03.
8.	Mitsuoka, A., A. Shito, S. Matsumoto, Y. Yamahsita, M. Nakamoto, S. Sakai, Y. Iio, H. Shimizu, K. Goto, T. Okada, M. Ohzono, Y. Yamanaka, M. Kosuga, M. Yoshimi, and Y. Asano, , Spatiotemporal Change in the Stress State Around the Hypocentral Area of the 2016 Kumamoto Earthquake Sequence, Journal of Geophysical Research (Solid Earth), 10.1029/2019JB018742, 125, 9, 2020.03.
9.	Yuasa, Y., S. Matsumoto, S. Nakao, T. Matsushima, and T. Ohkura, Inelastic strain rate and stress fields in and around an aseismic zone of Kyushu Island, Japan, inferred from seismic and GNSS data, Geophys. J. Int., https://doi.org/10.1093/gji/ggaa008, 221, 1, 289-304, 2020.03.
10.	Matsumoto, S., Y. Iio, S. Sakai, A. Kato, Inelastic strain in the hypocentral region of the 2000 Western Tottori Earthquake (M7.3) inferred from the seismic moment tensor of the aftershocks, Earth Planets and Space , Earth Planets and Space, https://doi.org/10.1186/s40623-020-01186-2, 72, 62, 2020.05.
11.	Yoshihisa Iio, Satoshi Matsumoto, Yusuke Yamashita, Shin’ichi Sakai, Kazuhide Tomisaka, Masayo Sawada, Takashi Iidaka, Takaya Iwasaki, Megumi Kamizono, Hiroshi Katao, Aitaro Kato, Eiji Kurashimo, Yoshiko Teguri, Hiroo Tsuda, Takashi Ueno, Stationarity of aftershock activities of the 2016 Central Tottori Prefecture earthquake revealed by dense seismic observation, earth, planets and space, 10.1186/s40623-020-01161-x, 72, 1, 2020.12, [URL], To clarify the relationship between earthquake occurrence and fluid, we analyzed data from a dense aftershock-observation network with 69 high-gain short-period seismographs installed immediately after the mainshock occurrence (October 21) in the aftershock area of the 2016 Central Tottori Prefecture earthquake. We determined the hypocenters and focal mechanisms of the aftershocks very precisely in the period from October 22 to December 15. We then investigated the temporal changes in the spatial distributions of hypocenters and T-axis azimuths of focal mechanisms. The distributions of aftershock hypocenters and T-axis azimuths are basically temporally stable, except those in limited portions in the shallow layer near the western edge of the aftershock area, where rapid decrease of aftershocks with T-axis azimuths of WSW to west was observed. If fluid rises from the lower crust due to fault rupture, the locations of aftershocks and focal mechanisms may change over time, especially in the deepest part of the aftershock region. However, the temporal change in these parameters was not apparent at depth. These observations suggest that the aftershock activity of the Central Tottori Prefecture earthquake was controlled mainly by stress concentration rather than strength reduction due to high fluid pressure.[Figure not available: see fulltext.]..
12.	Yuto Hayashida, Satoshi Matsumoto, Yoshihisa Iio, Shin'ich Sakai, Aitaro Kato, Non-Double-Couple Microearthquakes in the Focal Area of the 2000 Western Tottori Earthquake (M 7.3) via Hyperdense Seismic Observations, Geophysical Research Letters, 10.1029/2019GL084841, 47, 4, 2020.02, [URL], Earthquakes with non-double-couple (NDC) components are indicators of geometric fault complexity, anisotropy, tensile failure, and fluid flow effects. NDC earthquakes have been observed in volcanic zones and interpreted as faulting related to fluid effects in the hypocentral region. In this study, we provide evidence of the occurrence of microearthquakes with NDC components in a tectonic zone. Aftershocks of the 2000 Western Tottori earthquake revealed definite NDC components based on a polarity analysis of the first P wave motion data from a hyperdense seismic observation. We modeled these events using both shear faulting with tensile failure and multiple shear ruptures. Six of the eight NDC events were well modeled by shear faults accompanied with an opening tensile crack. These results suggest that pressurized fluid or a weak tensile crack may exist along the rupture zone of the Tottori earthquake..
13.	Satoshi Matsumoto, Tomomi Okada, Toshiko Terakawa, Makoto Uyeshima, Yoshihisa Iio, The advancement of research on inland earthquake generation 2014–2018, Journal of Disaster Research, 10.20965/jdr.2020.p0096, 15, 2, 96-105, 2020.01, [URL], The 2011 Tohoku-Oki Earthquake (M9.0) significantly affected inland areas of Japan. The crust and mantle response to the magathrust earthquake induced changes in the mechanical conditions of the seismo-genic zone. Here we present important progress in the research into the seismogenesis of inland earthquakes. Stress, strain, strength, and structures are key parameters affecting the occurrence of earthquakes. In par-ticular, both the spatial and temporal changes in these parameters around the focal areas of the large inland earthquakes have been detected and modeled. These results have provided spatial potential evaluation in terms of future inland earthquake occurrence. How-ever, we clearly recognize that, in order to understand and predict the inland earthquake generation process, it will inevitably be necessary to unify the research on various spatial and temporal scales, from problems related to long-term stress loading from plate-relative motion to instant fault response..
14.	, Kei Katsumata, Masayoshi Ichiyanagi, Mako Ohzono, Hiroshi Aoyama, Ryo Tanaka, Masamitsu Takada, Teruhiro Yamaguchi, Kazumi Okada, Hiroaki Takahashi, Shin’ichi Sakai, Satoshi Matsumoto, Tomomi Okada, Toru Matsuzawa, Shuichiro Hirano, Toshiko Terakawa, Shinichiro Horikawa, Masahiro Kosuga, Hiroshi Katao, Yoshihisa Iio, Airi Nagaoka, Noriko Tsumura, Tomotake Ueno, Kei Katsumata, Koji Miyakawa, Shin’ichi Tanaka, Miwako Ando, Naoki Uchida, Ryosuke Azuma, Ryota Takagi, Keisuke Yoshida, Takashi Nakayama, Satoshi Hirahara, Yoshiko Yamanaka, Yuta Maeda, Hiroki Miyamachi, Hiroshi Yakiwara, Takuto Maeda, Masahiro Shimazaki, Youichi Asano, The 2018 Hokkaido Eastern Iburi earthquake (M _JMA = 6.7) was triggered by a strike-slip faulting in a stepover segment insights from the aftershock distribution and the focal mechanism solution of the main shock, earth, planets and space, 10.1186/s40623-019-1032-8, 71, 1, 2019.12, [URL], The Hokkaido Eastern Iburi earthquake (M_JMA = 6.7) occurred on September 6, 2018, in the Hokkaido corner region where the Kurile and northeastern Japan island arcs meet. We relocated aftershocks of this intraplate earthquake immediately after the main shock by using data from a permanent local seismic network and found that aftershock depths were concentrated from 20 to 40 km, which is extraordinarily deep compared with other shallow intraplate earthquakes in the inland area of Honshu and Kyushu, Japan. Further, we found that the aftershock area consists of three segments. The first segment is located in the northern part of the aftershock area, the second segment lies in the southern part, and the third segment forms a stepover between the other two segments. The hypocenter of the main shock, from which the rupture initiated, is located on the stepover segment. The centroid moment tensor solution for the main shock indicates a reverse faulting, whereas the focal mechanism solution determined by using the first-motion polarity of the P wave indicates strike-slip faulting. To explain this discrepancy qualitatively, we present a model in which the rupture started as a small strike-slip fault in the stepover segment of the aftershock area, followed by two large reverse faulting ruptures in the northern and southern segments.[Figure not available: see fulltext.]..
15.	Tomomi Okada, Yoshihisa Iio, Satoshi Matsumoto, Stephen Bannister, Shiro Ohmi, Shintaro Horiuchi, Tadashi Sato, Tsutomu Miura, Jarg Pettinga, Francesca Ghisetti, Richard H. Sibson, Comparative tomography of reverse-slip and strike-slip seismotectonic provinces in the northern South Island, New Zealand, Tectonophysics, 10.1016/j.tecto.2019.03.016, 765, 172-186, 2019.08, [URL], Actively deforming crust and upper mantle around the obliquely convergent Pacific-Australia plate boundary in the northern South Island of New Zealand have been investigated by seismic tomography using data from a temporary c. 50 station network plus GEONET. The Alpine-Wairau Fault (principal component of the plate boundary at the surface) transects the study area, separating the Buller-Nelson (BN) province of active compressional inversion involving steep reverse faulting to the northwest, from the Marlborough fault system (MA) dominated by dextral strike-slip faulting to the southeast. In the course of this study, MA hosted the 2013 Seddon earthquake sequence (M5.9, 6.6) and the 2016 M7.8 Kaikoura earthquake. Active fault structures and present seismicity are associated with a heterogeneous distribution of low-velocity and Vp/Vs anomalies. Elsewhere, there is a general association between crustal seismicity and low-velocity zones along major fault structures within both the MA and BN seismotectonic provinces along which high Vp/Vs anomalies are locally conspicuous. Areas of active crustal seismicity are also generally characterized by high Vp/Vs, for instance the hypocentre and aftershocks of the 2016 M7.8 Kaikoura earthquake overlie a low-velocity region with high Vp/Vs. The coincidence of anomalously low Vp and Vs and anomalously high Vp/Vs with zones of high electrical conductivity defined by a previous MT transect is consistent with the notion that upward migration of overpressured hydrothermal fluid from the subducting slab at depth leads to a heterogeneous distribution of overpressured fluid in and around the base of the crustal seismogenic zone, weakening the overlying crust and promoting seismic rupture along major fault systems. It seems possible that the Association of mid-crustal low-velocity zones with anomalously high Vp/Vs may diagnose rupture preparation zones where frictional strength is being lowered by the build-up of fluid overpressure concurrent with accumulating shear stress, so that eventual fault failure is ‘dual-driven’..
16.	Masashi Ogiso, Mitsuyuki Hoshiba, Azusa Shito, Satoshi Matsumoto, Numerical shake prediction for earthquake early warning incorporating heterogeneous attenuation structure The case of the 2016 kumamoto earthquake, Bulletin of the Seismological Society of America, 10.1785/0120180063, 108, 6, 3457-3468, 2018.12, [URL], Schemes for predicting seismic ground motion, including real-time prediction (earthquake early warning [EEW]), ideally should incorporate the effects of the source, path, and site amplification terms. In this study, we incorporated the path term into the numerical shake prediction scheme, a promising approach to EEW, in an effort to predict future ground motions with a heterogeneous attenuation structure. We characterized the heterogeneous attenuation structure of southwestern Japan using multiple lapse time window analysis, then incorporated that attenuation structure in a simulation of ground-motion prediction for the largest earthquake (M_w 7.0) of the 2016 Kumamoto earthquake sequence. The heterogeneous attenuation structure led to improvements over a homogeneous structure: the root mean square residuals of the predicted seismic intensities were 12% lower for predictions 10 s ahead and 15% lower for predictions 20 s ahead, suggesting that the benefit of using a heterogeneous attenuation structure is greater for longer lead times. Our results show that details of the attenuation structure should be considered to lengthen the lead time of ground-motion predictions by the numerical shake prediction scheme..
17.	Matsumoto, S., Y. Yamashita, M. Nakamoto, M. Miyazaki, S. Sakai, Y. Iio, H. Shimizu, K. Goto, T. Okada, M. Ohzono, T. Terakawa, M. Kosuga, M. Yoshimi, and Y. Asano, Prestate of stress and fault behavior during the 2016 Kumamoto Earthquake (M7.3), Geophysical Research Letter, doi:10.1002/2017GL075725, 2018.01.
18.	Koki Aizawa, Hisafumi Asaue, Katsuaki Koike, Shinichi Takakura, Mitsuru Utsugi, Hiroyuki Inoue, Ryokei Yoshimura, Ken'Ichi Yamazaki, Shintaro Komatsu, Makoto Uyeshima, Takao Koyama, Wataru Kanda, Taro Shiotani, Nobuo Matsushima, Maki Hata, Tohru Yoshinaga, Kazunari Uchida, Yuko Tsukashima, Azusa Shito, Shiori Fujita, Asuma Wakabayashi, Kaori Tsukamoto, Takeshi Matsushima, Masahiro Miyazaki, Kentaro Kondo, Kanade Takashima, Takeshi Hashimoto, Makoto Tamura, Satoshi Matsumoto, Yusuke Yamashita, Manami Nakamoto, Hiroshi Shimizu, Seismicity controlled by resistivity structure The 2016 Kumamoto earthquakes, Kyushu Island, Japan, earth, planets and space, 10.1186/s40623-016-0590-2, 69, 1, 2017.12, [URL], The M _JMA 7.3 Kumamoto earthquake that occurred at 1:25 JST on April 16, 2016, not only triggered aftershocks in the vicinity of the epicenter, but also triggered earthquakes that were 50-100 km away from the epicenter of the main shock. The active seismicity can be divided into three regions: (1) the vicinity of the main faults, (2) the northern region of Aso volcano (50 km northeast of the mainshock epicenter), and (3) the regions around three volcanoes, Yufu, Tsurumi, and Garan (100 km northeast of the mainshock epicenter). Notably, the zones between these regions are distinctively seismically inactive. The electric resistivity structure estimated from one-dimensional analysis of the 247 broadband (0.005-3000 s) magnetotelluric and telluric observation sites clearly shows that the earthquakes occurred in resistive regions adjacent to conductive zones or resistive-conductive transition zones. In contrast, seismicity is quite low in electrically conductive zones, which are interpreted as regions of connected fluids. We suggest that the series of the earthquakes was induced by a local accumulated stress and/or fluid supply from conductive zones. Because the relationship between the earthquakes and the resistivity structure is consistent with previous studies, seismic hazard assessment generally can be improved by taking into account the resistivity structure. Following on from the 2016 Kumamoto earthquake series, we suggest that there are two zones that have a relatively high potential of earthquake generation along the western extension of the MTL. [Figure not available: see fulltext.].
19.	M. Ichihara, S. Matsumoto, Relative Source Locations of Continuous Tremor Before and After the Subplinian Events at Shinmoe-dake, in 2011, Geophysical Research Letters, 10.1002/2017GL075293, 44, 21, 10,871-10,877, 2017.11, [URL], Volcano monitoring systems are not always ready to resolve signals at the onset of eruptive activity. This study makes use of stations installed later to calibrate the performance of the stations that had been operated before the eruption. Seven stations recorded continuous volcanic tremor before and during the subplinian eruptions of Shinmoe-dake, Japan, in 2011. We estimated the source locations of the tremor using the amplitude distribution. The stability of the analysis was obtained by careful selection of time windows in which signals from a single source are dominated. The site effects and the regional attenuation factor were evaluated using tremor recorded after the major eruptions by a dense seismic array and a good number of stations. A tremor source changed its depth beneath the crater for 1 week before the major eruption, rising from a depth of a few kilometer to the water layer 3 times, each of which occurred following shallow inflation and minor eruptions. It is interpreted as migration of gas probably with magma, which further transported heat to the water layer and triggered the subplinian eruptions..
20.	Azusa Shito, Satoshi Matsumoto, Hiroshi Shimizu, Takahiro Ohkura, Hiroaki Takahashi, Shinichi Sakai, Tomomi Okada, Hiroki Miyamachi, Masahiro Kosuga, Yuta Maeda, Masayuki Yoshimi, Youichi Asano, Makoto Okubo, Seismic velocity structure in the source region of the 2016 Kumamoto earthquake sequence, Japan, Geophysical Research Letters, 10.1002/2017GL074593, 44, 15, 7766-7772, 2017.08, [URL], We investigate seismic wave velocity structure and spatial distribution of the seismicity in the source region of the 2016 Kumamoto earthquake sequence. A one-dimensional mean velocity shows that the seismogenic zone has a high-velocity and low-Vp/Vs ratio relative to the average velocity structure of Kyushu Island. This indicates that the crust is relatively strong, capable of sustaining sufficiently high strain energy to facilitate two large (M_j > 6.5) earthquakes in close proximity to one another in rapid succession. Three-dimensional tomography of the seismogenic zone around the source of the 2016 Kumamoto earthquake sequence yields Vp = 6 km/s and Vs = 3.5 km/s. Most large-displacement areas (asperities) of the M_j 7.3 event overlap with the seismogenic zone and the overlying surface layer. Aftershock seismicity is distributed deeper than the conventional seismogenic zone, which suggests decreased strength due to fluids or increased stress, both caused by coseismic slip..
21.	Satoshi Matsumoto, Takuya Nishimura, Takahiro Ohkura, Inelastic strain rate in the seismogenic layer of Kyushu Island, Japan 2016 Kumamoto earthquake sequence and its impact on earthquake science and hazard assessment Manabu Hashimoto, Martha Savage, Takuya Nishimura and Haruo Horikawa 4. Seismology, earth, planets and space, 10.1186/s40623-016-0584-0, 68, 1, 2016.12, [URL], Seismic activity is associated with crustal stress relaxation, creating inelastic strain in a medium due to faulting. Inelastic strain affects the stress field around a weak body and causes stress concentration around the body, because the body itself has already released stress. Therefore, the understanding of inelastic deformation is important as it generates earthquakes. We investigated average inelastic strain in a spatial bin of Kyushu Island, Japan, and obtained the inelastic strain rate distribution associated with crustal earthquakes, based on the analysis of fault plane solutions and seismic moments. Large inelastic strains (>10^-7 year^-1) were found in the Beppu-Shimabara area, located in the center of Kyushu Island. The strain rate tensor was similar to that of the stress tensor except the absolute value in the area, implying that the inelastic strain was controlled by the stress field. The 2016 Kumamoto earthquake sequence (maximum magnitude 7.3) occurred in the Beppu-Shimabara area, with the major earthquakes located around the high inelastic strain rate area. Inelastic strain in the volume released the stress. In addition, the inelastic strain created an increment of stress around the volume. This indicates that the spatial heterogeneity of inelastic strain might concentrate stress..
22.	Satoshi Matsumoto, Method for estimating the stress field from seismic moment tensor data based on the flow rule in plasticity theory, doi:10.1002/2016GL070129, 2016.10.
23.	Masahiro Miyazaki, Satoshi Matsumoto, Hiroshi Shimizu, Triggered tremors beneath the seismogenic zone of an active fault zone, Kyushu, Japan, earth, planets and space, 10.1186/s40623-015-0346-4, 67, 1, 2015.12, [URL], Non-volcanic tremors were induced by the surface waves of the 2012 Sumatra earthquake around the Hinagu fault zone in Kyushu, Japan. We inferred from dense seismic observation data that the hypocenters of these tremors were located beneath the seismogenic zone of the Hinagu fault. Focal mechanisms of the tremors were estimated using S-wave polarization angles. The estimated focal mechanisms show similarities to those of shallow earthquakes in this region. In addition, one of the nodal planes of the focal mechanisms is almost parallel to the strike direction of the Hinagu fault. These observations suggest that the tremors were triggered at the deeper extension of the active fault zone under stress conditions similar to those in the shallower seismogenic region. A low-velocity anomaly beneath the hypocentral area of the tremors might be related to the tremor activity..
24.	Satoshi Matsumoto, Shigeru Nakao, Takahiro Ohkura, Masahiro Miyazaki, Hiroshi Shimizu, Yuki Abe, Hiroyuki Inoue, Manami Nakamoto, Shin Yoshikawa, Yusuke Yamashita, Spatial heterogeneities in tectonic stress in Kyushu, Japan and their relation to a major shear zone, doi:10.1186/s40623-015-0342-8, 2015.10.
25.	Satoshi Matsumoto, Katao Hiroshi, Yoshihisa Iio, Determining change in the state of stress associated with an earthquake via combined focal mechanism and moment tensor analysis: Application to the 2013 Awaji Island earthquake Japan, 649, 58-67, 2015.03.
26.	Satoshi Matsumoto, Hiroshi Shimizu, TAKESHI MATSUSHIMA, Kenji Uehira, Yusuke Yamashita, Manami Nakamoto, Masahiro Miyazaki, Hiromi Chikura, Short-term spatial change in a volcanic tremor source　during the 2011 Kirishima eruption, Earth, Planets and Space, 65, 323-329, 2013.05, Volcanic tremors are indicators of magmatic behavior, which is strongly related to volcanic eruptions and activity. Detection of spatial and temporal variations in the source location is important for understanding the mechanism of volcanic eruptions. However, short-term temporal variations within a tremor event have not always been detected by seismic array observations around volcanoes. Here, we show that volcanic tremor sources were activated at both the top (i.e., the crater) and the lower end of the conduit, by analyzing seismograms from a dense seismic array 3 km from the Shinmoedake crater, Kirishima volcano, Japan. We observed changes in the seismic ray direction during a volcanic tremor sequence, and inferred two major sources of the tremor from the slowness vectors of the approaching waves. One was located in a shallow region beneath the Shinmoedake crater. The other was found in a direction N30◦W from the array, pointing to a location above a pressure source. The fine spatial and temporal characteristics of volcanic tremors suggest an interaction between deep and shallow conduits..
27.	Satoshi Matsumoto, 2012:Modeling heterogeneous deviatoric stress field around the hypocentral area of the 2005 Fukuoka earthquake (M7.0) by spatially distributed moment tensors, Journal of Geophysical Research, VOL. 117, B03303, doi:10.1029/2011JB008687, 2012.03.
28.	九州大学地震火山観測研究センター, 阿蘇火山における地球科学的観測, 火山噴火予知連絡会会報, 第106号, 122-124, 2011.11.
29.	九州大学地震火山観測研究センター, 雲仙火山活動状況（2010年2月〜2010年6月）, 火山噴火予知連絡会会報, 第106号, 125-128, 2011.11.
30.	九州大学地震火山観測研究センター, 雲仙火山活動状況（2010年6月〜2010年10月）, 火山噴火予知連絡会会報, 第107号, 150-153, 2011.11.
31.	Atsushi Saiga, Satoshi Matsumoto, Kenji Uehira, Takeshi Matsushima, and Hiroshi Shimizu, Velocity structure in the crust beneath the Kyushu area, Earth Planets Space, Vol. 62, No.5, 449-462, 2010.07.
32.	Matsumoto, S., K. Uehira, A. Watanabe, K. Goto, Y. Iio, N. Hirata, T. Okada, H. Takahashi, H. Shimizu, M. Shinohara and T. Kanazawa, High resolution Q-1 estimation based on extension of coda normalization method and its application to P–wave attenuation structure in the aftershock area of the 2005 West Off Fukuoka Prefecture Earthquake (M7.0), 京都大学防災研究所地震予知研究センター研究成果集, 19, 73-88, 2010.03.
33.	松本　聡, 地震波散乱構造の推定, 地震, 第61巻，特集号，S209-S216, 2009.09.
34.	河野裕希・松本　聡・松島　健・植平賢司・清水　洋・馬越孝道, 雲仙火山周辺域における相対応力場と1990-1995年噴火活動, 北海道大学地球物理学研究報告, 第72号，363-371, 2009.03.
35.	河野裕希・松本　聡・松島　健・植平賢司・清水　洋・馬越孝道, 1990〜1995年雲仙火山噴火前に起きた応力場の変化, 月刊地球, 号外，No.60，85-90, 2008.12.
36.	Nishigami, K. and S. Matsumoto, Imaging inhomogeneous structures in the Earth by coda envelope inversion and seismic array observation, Earth heterogeneity and scattering effects on seismic waves, Advances in Geophysics, vol. 50, chap. 11, Academic Press, 2008.12.
37.	2003年九州日奈久断層域構造探査グループ, 九州日奈久断層域における地殻構造探査, 東京大学地震研究所彙報, 第83号，第1冊，103-130, 2008.06.
38.	青木陽介, 武尾　実, 辻　　浩, 小山悦郎, 青山　裕, 藤松　淳, 松本　聡, 宮町宏樹, 中道治久, 大倉敬宏, 大湊隆雄, 及川　純, 棚田理絵, 筒井智樹, 山本圭吾, 山本　希, 山里　平, 山脇輝夫, 市原美恵, 井本良子, 風間卓仁, 小山崇夫, 前田裕太, 前野　深, 森田裕一, 中田節也, 中村　祥, 長田　昇, 渡辺秀文, P.K.B. Alanis, T. Anggono, 藤原善明, 福山由朗, 萩原慎太郎, 橋本武志, 平野舟一郎, 堀口桂香, 飯島　聖, 石原吉明, 石川渓太, 石坂和之, 北脇裕太, 黒木英州, 草野富二雄, 前川徳光, 増田与志郎, 松村智之, 中元真美, 西村太志, 野上健治, 奥田　隆, 坂井孝之, 佐藤正良, 鈴木敦生, 丹下　豪, 植木貞人, 渡邊篤志, 八木原　寛, 山崎友也, 吉川　慎, 浅間山における人工地震探査：探査の概要と初動の走時について, 東京大学地震研究所彙報, 第83号，第1冊，1-26, 2008.06.
39.	酒井慎一・加藤愛太郎・蔵下英司・飯高　隆・五十嵐俊博・平田　直・岩崎貴哉・金沢敏彦・渡辺　茂・羽田敏夫・小林　勝・三浦勝美・三浦禮子・田上貴代子・荻野　泉・坂　　守・渡邉篤志・宮川幸治・勝俣　啓・高橋浩晃・笠原　稔・本多　亮・前田宜浩・一柳昌義・山口照寛・小菅正裕・岡田知己・中島淳一・堀修一郎・中山貴史・新居恭平・長谷川昭・河野俊夫・鈴木秀市・津村紀子・小林里紗・野崎謙治・平松良浩・菅谷勝則・林亜以子・広瀬哲也・澤田明宏・田中敬介・山中佳子・中道治久・奥田　隆・飯尾能久・西上欽也・宮澤理稔・和田博夫・平野憲雄・中尾節郎・片尾　浩・大見士朗・伊藤　潔・澁谷拓郎・加納靖之・土井一生・野田俊太・片木　武・西辻陽平・松本　聡・松島　健・雑賀　敦・宮町宏樹・今西和俊・桑原保人・長　郁夫・干野　真・武田哲也・浅野陽一・行竹洋平・上野友岳・前田拓人・松澤孝紀・関根秀太郎・松原　誠・小原一成, 平成19年（2007年）能登半島地震合同余震観測, 東京大学地震研究所彙報, 第82号，第3冊，225-233, 2008.02.
40.	清水　洋・松本　聡・河野裕希・松島　健・植平賢司, 福岡西方沖地震のその後 -来るべき警固断層地震へむけて-, 長崎県地学会誌, 71, 39-40, 2007.10.
41.	飯尾能久，片尾　浩，上野友岳，Bogdan Enescu，平野憲雄，岡田知巳，内田直希，植平賢司，松本　聡，松島　健，清水　洋, 福岡県西方沖地震の余震の応力降下量の空間分布, 月刊地球, Vol.29，No.2，123-127, 2007.02.
42.	飯尾能久・松本　聡・松島　健・植平賢司・片尾　浩・大見士朗・澁谷拓郎・竹内文朗・西上欽也・Bogdan Enescu・廣瀬一聖・加納靖之・儘田　豊・宮澤理稔・辰己賢一・和田博夫・河野裕希, 2004年新潟県中越地震の発生過程−オンライン合同余震観測結果から−, 地震, 第2輯，58，4，463-475, 2006.03.
43.	飯尾能久・松本　聡・片尾　浩・松島　健・大見士朗・渋谷拓郎・竹内文朗・植平賢司・西上欽也・宮沢理稔・ENESCU Bogdan・広瀬一聖・加納靖之・河野裕希・辰巳賢一・上野友岳・和田博夫, 2004年新潟県中越地震発生過程, 月刊地球, 号外53，217-222, 2006.01.
44.	Watanabe, A., S. Matsumoto, T. Matsushima, K. Uehira, N. Matsuwo, and H. Shimizu, Shear wave polarization anisotropy in and around the focal region of the 2005 West off Fukuoka Prefecture earthquake, Earth Planets Space, Vol.58, No.12, 1633-1636, 2006.01.
45.	Hori, M., S. Matsumoto, K. Uehira, T. Okada, T. Yamada, Y. Iio, M. Shinohara, H. Miyamachi, H. Takahashi, K. Nakahigashi, A. Watanabe, T. Matsushima, N. Matsuwo, T. Kanazawa, and H. Shimizu, Three-dimensional seismic velocity structure as determined by double-difference tomography in and around the focal area of the 2005 West off Fukuoka Prefecture earthquake, Earth Planets Space, Vol.58, No.12, 1621-1626, 2006.01.
46.	Iio, Y., H. Katao, T. Ueno, B. Enescu, N. Hirano, T. Okada, N. Uchida, S. Matsumoto, T. Matsushima, K. Uehira, and H. Shimizu, Spatial distribution of static stress drops for aftershocks of the 2005 West Off Fukuoka Prefecture earthquake, Earth Planets Space, Vol.58, No.12, 1611-1615, 2006.01.
47.	Shimizu, H., H. Takahashi, T. Okada, T. Kanazawa, Y. Iio, H. Miyamachi, T. Matsushima, M. Ichiyanagi, N. Uchida, T. Iwasaki, H. Katao, K. Goto, S. Matsumoto, N. Hirata, S. Nakao, K. Uehira, M. Shinohara, H. Yakiwara, N. Kame, T. Urabe, N. Matsuwo, and T. Yama, Aftershock seismicity and fault structure of the 2005 West Off Fukuoka Prefecture Earthquake (MJMA7.0) derived from urgent joint observations, Earth Planets Space, Vol.58, No.12, 1599-1604, 2006.01.
48.	Matsumoto, S., A. Watanabe, T. Matsushima, H. Miyamachi, and S. Hirano, Imaging S-wave scatterer distribution in southeast part of the focal area of the 2005West Off Fukuoka Prefecture Earthquake (MJMA7.0) by dense seismic array, Earth Planets Space, Vol.58, No.12, 1627-1632, 2006.01.
49.	Korenaga, M., S. Matsumoto, Y. Iio, T. Matsushima, K. Uehira, and T. Shibutani, Three dimensional velocity structure around aftershock area of the 2004 mid Niigata prefecture earthquake (M6.8) by the Double-Difference tomography, Earth Planets Space, 57, 5, 429-433, Vol.57, 429-433, 2005.01.
50.	Shibutani, T., Y. Iio, S. Matsumoto, H. Katao, T. Matsushima, S. Ohmi, F. Takeuchi, K. Uehira, K. Nishigami, B. Enescu, I. Hirose, Y. Kano, Y. Kohno, M. Korenaga, Y. Mamada, M. Miyazawa, K. Tatsumi, T. Ueno, H. Wada, and Y. Yukutake, Aftershock distribution of the 2004 Mid Niigata Prefecture Earthquake derived from a combined analysis of temporary online observations and permanent observations, Earth Planets Space, 57, 6, 545-549, 57, 545-549, 2005.01.
51.	飯尾能久・松本　聡・片尾　浩・松島　健・大見士朗・澁谷拓郎・竹内文朗・植平賢司・西上欽也・Bogdan Enescu・廣瀬一望・加納靖之・河野裕希・是永将宏・儘田　豊・宮澤理稔・辰巳賢一, 2004年新潟県中越地震の発生過程, 京都大学防災研究所年報, 第48号　A，165-170, 2005.01.
52.	Miyazawa, M., J. Mori, Y. Iio, T. Shibutani, S. Matsumoto, H. Katao, S. Ohmi, and K. Nishigami, Triggering sequence of large aftershocks of the Mid Niigata prefecture, Japan Earthquake in 2004 by static stress changes, Earth Planets Space, 57, 11, 1109-1113, Vol. 57, 1109-1113, 2005.01.
53.	山下幹也・佐藤久美子・筒井智樹・松本　聡, 太田断層周辺における浅部地震波反射面, 活断層研究, 第25号，47-55, 2005.01.
54.	Matsumoto, S., Y. Iio, T. Matsushima, K. Uehira, and T. Shibutani, Imaging of S-wave reflectors in and around the hypocentral area of the 2004 mid Niigata Prefecture Earthquake (M6.8), Earth Planets Space, 57, 6, 557-561, Vol.57, 557-561, 2005.01.
55.	Matsumoto, S., Scatterer density estimation in the crust by seismic array processing, Geophys. J. Int., 10.1111/j.1365-246X.2005.02773.x, 163, 2, 622-628, 163, 622-628, 2005.01.
56.	鬼澤真也・大島弘光・青山　裕・森　　済・前川徳光・鈴木敦生・岡田　弘・筒井智樹・松尾のり道・及川　純・大湊隆雄・山本圭吾・森　健彦・平　貴昭・宮町宏樹・小山順ニ・蓬田　清, 有珠火山における人工地震探査−−観測および初動の読み取り−−, 東京大学地震研究所彙報, 第78号，第2冊，121-143, 2003.01.
57.	松本聡,小原一成,木村尚紀,中村めぐみ, アレイ観測による2000年鳥取県西部地震震源域周辺の短波長不均質構造のイメージング, 地震2, Vo.55, No.2, 229-232, 2002.10.
58.	田中　聡・浜口博之・山脇輝夫・西村太志・植木貞人・中道治久・宮町宏樹・筒井智樹・松尾のり道・及川　純・大湊隆雄・宮岡一樹・鬼沢真也・森　健彦・相沢幸司・中原　恒・堀修一郎, 岩手山における人工地震探査−−観測および初動の読み取り−−, 東京大学地震研究所彙報, 第77号, 第1冊, 1-25, 2002.01.
59.	中村めぐみ・松本　聡・植平賢司・清水　洋, 稍深発地震に見られる変換波を用いた九州地方及びその周辺におけるモホ面の推定, フィリピン海スラブの沈み込みと島弧・背弧の地球物理・京都大学防災研究所研究集会（一般）13K-7報告書, 246-255, 2002.01.
60.	清水　洋・植平賢司・松本　聡・松島　健・松尾のり道, 布田川-日奈久断層系における地震活動, 月刊地球, 号外38, 128-133, 2002.01.
61.	清水　洋・松本　聡・植平賢司・松尾のり道・大西正純, 雲仙火山における火道探査実験, 月刊地球, Vol.24, No.12, 878-882, 2002.01.
62.	Matsumoto, S., K. Obara, and A. Hasegawa, Characteristics of coda envelope for slant-stacked seismogram, Geophys. Res. Lett., 10.1029/2000GL011766, 28, 6, 1111-1114, Vol. 28 , No. 6 ,1111-1114, 2001.10.
63.	Matsumoto, S., K. Obara, K. Yoshimoto, T. Saito, A. Ito and A. Hasegawa, Temporal change in P-wave scatterer distribution associated with the M6.1 earthquake near Iwate volcano, northeastern Japan, Geophys. J. Int., 10.1046/j.1365-246x.2001.00339.x, 145, 1, 48-58, Vol.145, 48-58, 2001.10.
64.	松本聡, 地震計アレイ観測に基づく不均質構造の推定, 地震, Vol.54, No.1, 193-201, 2001.10.
65.	Tsumura, N., S. Matsumoto, S. Horiuchi and A. Hasegawa, Three-dimensional attenuation structure beneath the northeastern Japan arc estimated from spectra of small earthquakes, Tchtonophysics, Vol.319, No.3, 241-260, 2000.10.
66.	Ito, S., R. Hino, S. Matsumoto, H. Shiobara, H. Shimamura, T. Kanazawa, T. Sato, J. Kasahara and A. Hasegawa, Deep seismic structure of the seismogenic plate boundary in the off-Sanriku region, northeastern Japan, Tchtonophysics, Vol.319, No.3, 261-274, 2000.10.
67.	Matsumoto, S, K. Obara, and A. Hasegawa, Imaging P-wave scatterer distribution in the focal area of 1995 M7.2 Hyogo-ken Nanbu (Kobe) Earthquake, Geophys. Res. Lett., Vol.25, No.9, 1439-1442, 1999.10.
68.	Adachi, Y., H. Sato, K. Muro, A. Hasegawa, and S. Matsumoto, Three-Dimensional Thermal Structure of the Crust Beneath the Nikko Volcano, Bull. Volcanol. Soc. Japan, Vol.44, No.4, 183-190, 1999.10.
69.	松本聡,小原一成,吉本和生,斎藤竜彦,長谷川昭,伊東明彦, 短スパンアレイ観測による奥羽脊梁山地周辺の地殻不均質構造のイメージング, 地震, Vol.52, No.2, 283-297, 1999.10.
70.	Matsumoto, S. and A. Hasegawa, Distinct S-wave reflector in the mid-crust beneath Nikko-Shirane volcano in the northeastern Japan arc, J. Geophys. Res., Vol.101, 3067-3083, 1996.10.
71.	Aoki, Y., M. Takeo, H. Aoyama, J. Fujimatsu, S. Matsumoto, H. Miyamachi, H. Nakamichi, T. Ohkura, T. Ohminato, J. Oikawa, R. Tanada, T. Tsutsui, K. Yamamoto, M. Yamamoto, H. Yamasato, T. Yamawaki, P-wave velocity structure beneath Asama Volcano, Japan, inferred from active source seismic experiment, Journal of Volcanology and Geothermal Research, 187, 3/4, 272-277.
72.	Matsumoto, S., K. Uehira, A. Watanabe, K. Goto, Y. Iio, N. Hirata, T. Okada, H. Takahashi, H. Shimizu, M. Shinohara and T. Kanazawa, High resolution Q−1 estimation based on extension of coda normalization method and its application to P-wave attenuation structure in the aftershock area of the 2005West Off Fukuoka Prefecture Earthquake (M7.0), Geophys. J. Int., doi: 10.1111/j.1365-246X.2009.04313.x.

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