Results 21 to 30 of about 267 (152)
On the biannually repeating slow‐slip events at the Ryukyu Trench, southwestern Japan [PDF]
Global positioning system data show that about 20 slow‐slip events occurred during 1997–2007 in the southwestern part of the Ryukyu Arc, Japan, where large interplate thrust earthquakes are not known to have occurred in spite of relatively fast plate convergence.
Heki, Kosuke, Kataoka, Takeshi
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Okinawa Trough geophysical and topographic modeling by GDAL utilities and GRASS GIS [PDF]
This paper presents using GDAL utilities and GRASS GIS for topographic analysis of the raster grids based on GEBCO DEM as NetCDF file at 15 arc-second intervals.
Lemenkova Polina
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Paleotsunami research along the Nankai Trough and Ryukyu Trench subduction zones – Current achievements and future challenges [PDF]
Abstract Located near Japan's most densely populated and industrially active region, the Nankai Trough subduction zone has long been highlighted as a high-risk area for damaging earthquakes and tsunamis. In contrast, less attention has been paid the adjacent Ryukyu Trench because historical and geological records are scarce.
Fujiwara, Osamu +3 more
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The Ryukyu (Nansei-Shoto) island arc-trench system, southwest of Japan, is formed by the subduction of the Philippine Sea (PHS) plate. Among the subduction zones surrounding the Japan Islands, the Ryukyu arc-trench system is unique in that its backarc ...
Azusa Nishizawa +5 more
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Seismic structure of the northern end of the Ryukyu Trench subduction zone, southeast of Kyushu, Japan [PDF]
Abstract P-wave velocity models related to the Philippine Sea plate subduction have been obtained from seismic explorations at the northern end of the Nansei-Shoto (Ryukyu) Trench. Both multi-channel seismic reflection and ocean bottom seismographic records provide clear images of the rough seafloor topography and irregular P ...
Nishizawa, Azusa +2 more
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In this study, which was conducted to investigate present-day geological deformations occurring off the central Ryukyu Arc along the Ryukyu Trench (Okinawa-jima) in the vicinity of Japan, we obtained and examined dense, high-resolution, 2D grid (high ...
Kohsaku Arai +2 more
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Low-frequency earthquakes along the Ryukyu Islands triggered by teleseismic earthquakes
Tremors and low-frequency earthquakes (LFEs), which occur in the plate interface, can provide useful information about the state of aseismic stress transfer in mega-earthquake fault zones.
Ayumi Kinjo, Mamoru Nakamura
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Long-term seafloor geodetic measurements are important for constraining submarine crustal deformation near plate boundaries. Here we present an integrated analysis of a decade of GNSS/acoustic data collected at a site 60 km to the east of northeast ...
Horng-Yue Chen +11 more
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Aseismic crustal movement in southern Ryukyu Trench, southwest Japan [PDF]
Anomalous crustal deformation following the Mw = 7.1, March 31, 2002, Hualien earthquake was observed over 5 years using the global positioning system (GPS) network in the south Ryukyu Islands. The analysis showed an afterslip event at a depth of 30 km on the subducting Philippine Sea plate. The magnitude of the cumulative moment reached 7.4.
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Reappraisal of the Arc-Arc Collision in Taiwan
Al though it is evident that Taiwan has been formed by the collision of the west-facing Luzon arc with the Eurasian continental mar gin, there're main a lot of enigmas in this collision. The major ones are: (1) a trans form fault presently connecting the
Tetsuzo Seno Yoshiaki Kawanishi
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