Seismicity related to heterogeneous structure along the western Nankai trough off Shikoku Island

Seismicity related to heterogeneous structure along the western Nankai trough off Shikoku Island
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与四国岛南海海槽西部沿线非均质结构有关的地震活动

DOI:
10.1029/2006gl028179
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发表时间:
2006
影响因子:
5.2
通讯作者:
Y. Kaneda
Y. Kaneda
中科院分区:
地球科学1区
文献类型:
--
作者:
K. Obana;S. Kodaira;Y. Kaneda

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沿着日本西南部南海海槽西部,不均匀的地壳结构,如分散的深部强反射体和俯冲的地形高点,在1946年南海地震期间,在同震滑动中表现出与沿着-海槽变化的空间关系,这是该地区最近的8级板间地震。我们在南海海槽西部四国岛附近用临时海底地震台网观测到了微地震。在室户角海槽轴附近,俯冲洋板块的地震与洋壳和俯冲板块上地幔的结构有关。在海槽向陆斜坡之下,观测到的地震反映了与地壳结构变化有关的非均匀板间耦合。南海西部海槽沿着的地壳结构变化可以影响板间地震期间的板间耦合以及板间大地震期间的同震破裂传播。
Along the western Nankai trough, southwest Japan, heterogeneous crustal structures, such as scattered deep strong reflectors and a subducted topographic high, showed a spatial relationship to along‐trough variation in the coseismic slip during the 1946 Nankai earthquake, which is the most recent of repeated interplate earthquakes of magnitude 8 range in this area. We observed micro earthquakes using a temporary ocean bottom seismograph network off Shikoku Island, western Nankai trough. Near the trough axis off Cape Muroto, earthquakes in the subducting oceanic plate were associated with structures in the oceanic crust and the uppermost mantle of the subducting plate. Beneath the trough landward slope, the observed earthquakes suggest heterogeneous interplate coupling related to the crustal structure variations. The crustal structure variations could affect the interplate coupling during the interseismic period as well as coseismic rupture propagation during large interplate earthquakes along the western Nankai trough.
南海海槽西部震源区向海上倾极限的微震活动
DOI: --
发表时间: 2003
期刊: Journal of Geophysical Research 108
影响因子: --
作者:
Obana K.;S.Kodaira;Y.Kaneda;K.Mochizuki;M.Shinohara;K.Suyehiro
通讯作者: K.Suyehiro
DOI: 10.1029/2000jb000121
发表时间: 2002-10
影响因子: --
作者:
N. Takahashi;S. Kodaira;A. Nakanishi;Jin-Oh Park;S. Miura;T. Tsuru;Y. Kaneda;K. Suyehiro;H. Kinoshita;N. Hirata;T. Iwasaki
通讯作者: N. Takahashi;S. Kodaira;A. Nakanishi;Jin-Oh Park;S. Miura;T. Tsuru;Y. Kaneda;K. Suyehiro;H. Kinoshita;N. Hirata;T. Iwasaki
DOI: --
发表时间: 2006
期刊: J.Earth Simulator 5
影响因子: --
作者:
Hori;T.
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南开俯冲带周围地壳电阻率结构(综述)
DOI: --
发表时间: 2005
期刊: Butsuri-tansa(Geophysical Exploration) 58
影响因子: --
作者:
Kimura;T
通讯作者: T