Faculty Profiles - MATTA Nobuhisa

MISC - MATTA Nobuhisa

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2014年長野県北部の地震(Mw6.2)の地表地震断層を横切る反射法地震探査

岡田真介, 松多信尚, 小鹿浩太, 川崎悠介, 松原由和, 遠田晋次

日本地球惑星科学連合大会予稿集(Web) 2016 2016

2016年熊本地震による阿蘇カルデラの北部低地に見られる亀裂と地震断層:地上調査と低空撮画像の解析による検討

田中圭, 中田高, 松多信尚, 楮原京子, 竹竝大士, 隈元崇, 森木ひかる

日本地球惑星科学連合大会予稿集(Web) 2016 2016

神城断層(糸魚川静岡構造線活断層)の活動履歴-白馬村蕨平における変動地形学的調査

松多信尚, 杉戸信彦, 廣内大助, 池田一貴, 澤祥, 渡辺満久, 鈴木康弘

日本地球惑星科学連合大会予稿集(Web) 2016 2016

Distribution of surface rupture associated the 2016 Kumamoto earthquake and its significance

KUMAHARA Yasuhiro, GOTO Hideaki, NAKATA Takashi, ISHIGURO Satoshi, ISHIMURA Daisuke, ISHIYAMA Tatsuya, OKADA Shinsuke, KAGOHARA Kyoko, KASHIHARA Shintaro, KANEDA Heitaro, SUGITO Nobuhiko, SUZUKI Yasuhiro, TAKENAMI Daishi, TANAKA Kei, TANAKA Tomoki, TSUTSUMI Hiroyuki, TODA Shinji, HIROUCHI Daisuke, MATSUTA Nobuhisa, MITA Tomokazu, MORIKI Hikaru, YOSHIDA Haruka, WATANABE Mitsuhisa

日本地球惑星科学連合大会予稿集(Web) 2016 2016

Pictorial 4: Anaglyph Images Using Aerial Photographs Taken Just after the 2011 Pacific Coast of Tohoku Earthquake

SUZUKI Yasuhiro, MATSUTA Nobuhisa, SUGITO Nobuhiko

Journal of Geography (Chigaku Zasshi) 124 ( 2 ) x - x 2015

Geographies of relief goods transportation

ARAKI Hitoshi, IWAMA Nobuyuki, KAGOHARA Kyoko, TANAKA Koichi, NAKAMURA Tsutomu, MATTA Nobuhisa

Proceedings of the General Meeting of the Association of Japanese Geographers 2015 ( 88 ) 100001 - 100001 2015

Significance of the Tsunami Run-up Height Map for the 2011 off the Pacific coast of Tohoku earthquake

Sugito Nobuhiko, Matsuta Nobuhisa, Ishiguro Satoshi, Sano Shigeki, Uchida Chikara, Senda Yoshimichi, Sakaue Hiroyuki, Suzuki Yasuhiro

Proceedings of the General Meeting of the Association of Japanese Geographers 2015 ( 87 ) 100166 - 100166 2015

Slip rate and timing of faulting on the the Kamishiro fault revealed at Shinden and Oide, Hokujo, Hakuba Village, central Japan Reviewed

Sugito Nobuhiko, Taniguchi Kaoru, Matsuta Nobuhisa, Sawa Hiroshi, Tajikara Masayoshi, Nozawa Tatsujiro, Minaguro Takeshi

Active Fault Research 2015 ( 43 ) 109 - 118 2015

Language：Japanese Publisher：Japanese Society for Active Fault Studies

<p>An Mj 6.7 earthquake struck the northern part of the Nagano Prefecture, central Japan, at 22:08 JST on November 22, 2014. The earthquake was named 2014 Naganoken-hokubu earthquake, and its coseismic surface rupture has been identified along the northern part of the Kamishiro fault in the northernmost part of the Itoigawa-Shizuoka Tectonic Line active fault system. We have conducted 1) aerial-photograph interpretation, 2) field explorations, 3) photogrammetric analysis, and 4) drilling and pit excavation surveys on the northern part of the Kamishiro fault since 2005, in order to better estimate slip rates and timing of faulting on the fault. At the Shinden site, the Aira-Tanzawa volcanic ash (ca. 30 ka) was identified in the L1 terrace-surface deposit. In addition, the age of L2 terrace surface was estimated at ca. 5 ka. Because the amounts of vertical offset of the L2 terrace surface are 8.0 m and 6.5-7.0 m at the Shinden and Oide sites, vertical slip rates can be calculated to be 1.6 mm/yr and 1.3-1.4 mm/yr, respectively. We also revealed subsurface stratigraphy in the down-thrown side of the Kamishiro fault at the Oide site, and identified three possible paleoseismic events that occurred ca. 1,000-1,300 years ago, 500-600 years ago, and after 300 years ago. Further investigations are needed to better understand paleoseismic activity and long-term seismic risk of the Kamishiro fault.</p>

DOI： 10.11462/afr.2015.43_109

Surface rupture of the 2014 Kamishiro fault earthquake

Hirouchi Daisuke, Sugito Nobuhiko, Kaneda Heitaro, Goto Hideaki, Matsuta Nobuhisa, Suzuki Yasuhiro

Proceedings of the General Meeting of the Association of Japanese Geographers 2015 ( 87 ) 100278 - 100278 2015

Surface rupture associated with the 2014 Naganoken-hokubu earthquake (Kamishiro fault earthquake), central Japan

Hirouchi Daisuke, Suzuki Yasuhiro, Watanabe Mitsuhisa, Sawa Hiroshi, Miyauchi Takahiro, Forteenth Year Kamishiro Fault Earthquake Research Group for the Twenty-, Matsuta Nobuhisa, Sugito Nobuhiko, Kumahara Yasuhiro, Ishiguro Satoshi, Kaneda Heitaro, Goto Hideaki, Kagohara Kyoko, Nakata Takashi

Active Fault Research 2015 ( 43 ) 149 - 162 2015

Language：Japanese Publisher：Japanese Society for Active Fault Studies

<p>The 2014 M 6.7 Naganoken-hokubu earthquake was caused by movement of the Kamishiro fault located in the northernmost part of the Itoigawa-Shizuoka Tectonic Line (ISTL) active fault system, central Japan. We conducted a series of field research immediately after the earthquake to describe coseismic surface ruptures. Our description methods were: 1) field reconnaissance using pre- and post-earthquake airphotos; 2) quick measurement using staff; 3) topographic profiling using Auto Level and Total Station; and, 4) UAV and highpole SfM measurement. We identified 9-km-long coseismic surface rupture, most of which was located along the pre-existing surface trace of the Kamishiro fault. The maximum value of coseismic vertical offset was ca. 1 m or more, which was recorded at Oide in the northern part of the rupture. Based on comparison of the 2014 coseismic slip distribution with the long-term slip rate distribution, both 2014 slip amount and cumulative offset amounts of L2 and L3 terrace surfaces are larger in the northern end of the ruptures. This implies that the subsurface coseismic slip during pre-2014 earthquakes continued toward the north, similar to that during the 2014 earthquake. In addition, both coseismic slip and long-term slip rate becomes smaller toward the south, indicating that the Kamishiro area is one of the segment boundaries in the northern part of the ISTL active fault system. Further investigations of the 2014 earthquake and the Kamishiro fault are needed to understand formation of tectonic landforms, landscape development, or earthquake prediction model of active faults.</p>

DOI： 10.11462/afr.2015.43_149

What Differentiated Local Casualties Caused by the Tsunami ?

TAKAHASHI Makoto, MATSUTA Nobuhisa

Journal of Geography (Chigaku Zasshi) 124 ( 2 ) 193 - 209 2015

Language：Japanese Publisher：Tokyo Geographical Society

&emsp;Generally, the impacts of a tsunami can be understood in terms of the corresponding relationships between hazard scale and extent of building damage and loss of human life. Focusing on community-scale statistics of the municipalities of Kamaishi, Kesen'numa, Minami-sanriku, and Yamamoto, which were severely affected by the 2011 Tohoku Earthquake, significant variations are observed in the mortality rates at affected villages that experienced the same levels of building damage. Moreover, differences in the geographical locations of the villages also impact their mortality rates. A village with a high mortality rate is situated either on a coastal plain or on an inland valley plain some distance from the sea, whereas a village with a low mortality rate is paradoxically in close proximity to the sea, often facing a small bay. Close interrelationships are identified among geographical conditions and possible evacuation activities, which relate to the geographical imaginations of inhabitants based on their inherent local knowledge and interactions with physical and built environments. Interviews with survivors indicate decisions to escape could not be made quickly after the earthquake occurred. Rather, people were confused regarding the occurrence and magnitude of the tsunami and the provision of evacuation sites. The tsunami waves were often different from those that were formally forecast and broadcast, which compelled people to act flexibly. Consequently, it is argued that it is necessary to emphasize the effects of local geographies on interactions between tsunami waves and evacuation activities from a grassroots perspective when preparing for future tsunamis.

DOI： 10.5026/jgeography.124.193

Source Fault Model of the 2011 off the Pacific Coast of Tohoku Earthquake, Estimated from the Detailed Distribution of Tsunami Run-up Heights

MATSUTA Nobuhisa, SUZUKI Yasuhiro, SUGITO Nobuhiko, NAKATA Takashi, WATANABE Mitsuhisa

Journal of Geography (Chigaku Zasshi) 124 ( 2 ) 177 - 192 2015

Language：Japanese Publisher：Tokyo Geographical Society

&emsp;The distribution of tsunami run-up heights generally has spatial variations, because run-up heights are controlled by coastal topography including local-scale landforms such as natural levees, in addition to land use. Focusing on relationships among coastal topography, land conditions, and tsunami run-up heights of historical tsunamis—Meiji Sanriku (1896 A.D.), Syowa Sanriku (1933 A.D.), and Chilean Sanriku (1960 A.D.) tsunamis—along the Sanriku coast, it is found that the wavelength of a tsunami determines inundation areas as well as run-up heights. Small bays facing the Pacific Ocean are sensitive to short wavelength tsunamis, and large bays are sensitive to long wavelength tsunamis. The tsunami observed off Kamaishi during the 2011 off the Pacific coast of Tohoku Earthquake was composed of both short and long wavelength components. We examined run-up heights of the Tohoku tsunami, and found that: (1) coastal areas north of Kamaishi and south of Yamamoto were mainly attacked by short wavelength tsunamis; and (2) no evidence of short wavelength tsunamis was observed from Ofunato to the Oshika Peninsula. This observation coincides with the geomorphologically proposed source fault model, and indicates that the extraordinary large slip along the shallow part of the plate boundary off Sendai, proposed by seismological and geodesic analyses, is not needed to explain the run-up heights of the Tohoku tsunami. To better understand spatial variations of tsunami run-up heights, submarine crustal movements, and source faults, a detailed analysis is required of coastal topography, land conditions, and submarine tectonic landforms from the perspective of geomorphology.

DOI： 10.5026/jgeography.124.177

The toll of the victims of the Mikawa earthquake by the surface rupture along the Fukozu fault

Matsuta Nobuhisa, Kimata Fumiaki

Proceedings of the General Meeting of the Association of Japanese Geographers 2015 ( 87 ) 100231 - 100231 2015

Publisher：The Association of Japanese Geographers

This study was analyzed building damage and human damages by the 1944 Tonankai earthquake and the Mikawa earthquake in Aichi Prefecture. We compared in detail the number of collapse house, victims, and physical geographic condition, at the village scale. As the result we can show the feature of disaster type by the earthquake shock and the displacement. On the earthquake shock, houses are destroyed. Since it takes time to be completely destroyed, people has the time to escape from the onslaught of violence. On the other hand, on the displacement houses are destroyed in a moment before people escape.

DOI： 10.14866/ajg.2015s.0_100231

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Spatial Variations of Tsunami Run-up Heights for the 2011 off the Pacific Coast of Tohoku Earthquake, Based on GIS Analysis of Tsunami Inundation Area Data and Digital Elevation Model

SUGITO Nobuhiko, MATSUTA Nobuhisa, ISHIGURO Satoshi, UCHIDA Chikara, SENDA Yoshimichi, SUZUKI Yasuhiro

Journal of Geography (Chigaku Zasshi) 124 ( 2 ) 157 - 176 2015

Language：Japanese Publisher：Tokyo Geographical Society

&emsp;Spatial variations of hazards such as strong ground motion and tsunami inundation are a key element for obtaining a geographical understanding of natural disasters. However, detailed distribution of tsunami run-up heights for the devastating tsunami associated with the 2011 off the Pacific coast of Tohoku earthquake is not available. A GIS analysis of tsunami inundation areas is conducted from data collected by the Tsunami Damage Mapping Team and from post-tsunami 2-m mesh and 5-m mesh digital elevation models (DEM) after the Geospatial Information Authority of Japan, in order to produce the Tsunami Run-up Height Map, which includes polygon data of inundation areas with elevation data at each point. Horizontal shifts of orthophotos taken just after the tsunami are corrected using a Helmert transformation. The map covers Iwate Prefecture, Miyagi Prefecture, and the northern part of Fukushima Prefecture continuously at high resolutions, and reveals spatial variations of tsunami run-up heights in detail. These variations are caused by: 1) landforms at each site, such as coastal plains, valleys, bays, and beach ridges, as well as their directions and magnitudes, and 2) source locations, interference, and wavelengths of the tsunami, as implied by a previous study. The map supports examination carried out on source fault models and simulation results of tsunamis from a geographical viewpoint. At the same time, the methodology to produce the map would be useful for systematically revealing run-up height distribution, in addition to inundation areas immediately after future tsunamis.

DOI： 10.5026/jgeography.124.157

Active fault along the Kamishiro fault, Central Japan, Especially its close coincidence with the location of the surface rupture associated with the 2014 Kamishiro fault earthquake

SAWA Hiroshi, MATSUTA Nobuhisa, WATANABE Mitsuhisa, SUZUKI Yasuhiro, NAKATA Takashi

Proceedings of the General Meeting of the Association of Japanese Geographers 2015 ( 87 ) 100208 - 100208 2015

Pictorial 1: Tsunami Run-up Height Map for the 2011 Pacific Coast of Tohoku Earthquake around Motoyoshi-cho, Kesen-numa City, Miyagi Prefecture

SUGITO Nobuhiko, MATSUTA Nobuhisa, ISHIGURO Satoshi, UCHIDA Chikara, SANO Shigeki, SENDA Yoshimichi, SUZUKI Yasuhiro

Journal of Geography (Chigaku Zasshi) 124 ( 2 ) vii - vii 2015

2014年長野県北部の地震(神城断層地震)に伴う地表地震断層と活断層

廣内大助, 杉戸信彦, 金田平太郎, 後藤秀昭, 松多信尚, 鈴木康弘, 石黒聡士, 熊原康博

日本地球惑星科学連合大会予稿集(Web) 2015 2015

1944年東南海地震の被害再検討(1)戦禍がもたらした震災

木股文昭, 木股文昭, 松多信尚

歴史地震(Web) ( 30 ) 2015

三河地震における死亡者と活断層および地形との関係

松多信尚, 木股文昭, 木股文昭

歴史地震(Web) ( 30 ) 2015

2014年長野県北部の地震(神城断層地震)で現れた地表地震断層と既存活断層の位置関係

澤祥, 松多信尚, 渡辺満久, 鈴木康弘, 中田高

日本地球惑星科学連合大会予稿集(Web) 2015 2015

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