Kii Peninsula
Crustal deformations in Kii peninsula associated with the SE off the Kii peninsula earthquake sequence of September 5, 2004 derived from dense GPS observations
... February–March to August–September, 2004. This is the effect of difference in Hermert transformation parameters. Small steps between August and September, which can be seen in only GEONET stations, are coseismic ...
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A tectonic interpretation of NW SE strike slip faulting during the 2004 off the Kii peninsula earthquakes, Japan: Probable tear of the Philippine Sea plate
... the Kii peninsula earthquakes (M w ...the Kii Peninsula pointed out by Miyoshi and Ishibashi ...the Kii Peninsula, and that a partial rupture of this fracture occurred during the ...
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Long period ground motions from a large offshore earthquake: The case of the 2004 off the Kii peninsula earthquake, Japan
... The 2004 off the Kii Peninsula earthquake excited long-period ground motions over a wide area of Honshu Island of Japan. This remarkable excitation was observed in the Osaka, Nobi, and Kanto basins as well ...
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Dissimilar receiver functions observed at very close stations in the Kii Peninsula, central Japan: features and causes
... the Kii Peninsula, central Japan, non-volcanic low- frequency tremors (LFTs) are actively distributed along the iso-depth contour of the subducting Philippine Sea slab (Obara 2002), as shown in ...the ...
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Seafloor displacement at Kumano nada caused by the 2004 off Kii Peninsula earthquakes, detected through repeated GPS/Acoustic surveys
... In 2004, we started monitoring crustal deformation at Kumano-nada in the Nankai trough using the GPS/Acoustic technique. We observed a large southward seafloor displacement of ∼30 cm associated with the off Kii ...
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Average slip rate at the transition zone on the plate interface beneath the Kii Peninsula, Japan, estimated from deep low frequency tremors
... the Kii Peninsula, Japan, using an empirical method based on a proportional relation of sizes between short-term slow slip events and nonvolcanic deep low-frequency ...southern Kii Peninsula, ...
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Tsunami source of the 2004 off the Kii Peninsula earthquakes inferred from offshore tsunami and coastal tide gauges
... Tsunamis from the 2004 off the Kii Peninsula earthquakes (M 7.1 and 7.4) were recorded on offshore tsunami gauges, a GPS tsunami gauge and eight bottom-pressure gauges, as well as coastal tide gauges ...
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Difference in the initial slopes of the P wave envelope waveforms of the main shock M7 4 and foreshock M7 1 of the 2004 off the Kii peninsula earthquakes
... We have analyzed the P-wave initial slopes of the verti- cal envelope waveforms observed at the K-NET stations in association with the foreshock M7.1 (depth 38 km), main shock M7.4 (44 km) and two aftershocks, M6.5 (41 ...
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Co seismic strain steps associated with the 2004 off the Kii peninsula earthquakes Observed with Ishii type borehole strainmeters and quartz tube extensometers
... in Kii peninsula associated with the SE off the Kii peninsula earthquake sequence of September 5, 2004 derived from dense GPS observations, Earth Planets Space, 57, 185–190, ...
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Fault geometry of the 2004 off the Kii peninsula earthquake inferred from offshore pressure waveforms
... We could successfully obtain water pressure fluctuations after a series of two off the Kii peninsula earthquakes that took place on September 5 in 2004, using two pressure gauges deployed at deep ...
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Urgent aftershock observation of the 2004 off the Kii Peninsula earthquake using ocean bottom seismometers
... Fig. 1. Location map of the 2004 off the Kii Peninsula earthquake. Our study area is indicated by a rectangle near the axis of the Nankai trough. Solid star and open stars indicate the main shock and the ...
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Long period ground motion simulation in the Kinki area during the MJ 7 1 foreshock of the 2004 off the Kii peninsula earthquakes
... shu from Kanto to Kyushu on 5 September 2004 (Japan Me- teorological Agency, 2004). These events occurred off the Kii Peninsula in the shallower part of the subducting Philip- pine Sea Plate. They are ...
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Non volcanic seismic swarm and fluid transportation driven by subduction of the Philippine Sea slab beneath the Kii Peninsula, Japan
... In contrast, the polarity of the top plate interface changes from negative to positive at depths greater than 50 km. The dip angle of the oceanic crust increases rapidly with depth, due to the initiation of slab bending. ...
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An improved double difference earthquake location algorithm using s P phases: application to the foreshock and aftershock sequences of the 2004 earthquake offshore of the Kii peninsula, Japan (Mw=7 5)
... The effective elastic thickness of the PHS in the focal region, estimated from the seafloor age, is about 35 km (Yoshioka and Ito, 2001). Most of the hypocenters located by JMA that are deeper than 35 km might not be ...
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Co seismic and post seismic pore fluid pressure changes in the Philippine Sea plate and Nankai decollement in response to a seismogenic strain event off Kii Peninsula, Japan
... Fig. 1. Maps (a, b) and cross-section (c) of the Nankai Trough, offshore central Japan. Focal mechanisms shown in (a) are those of the three largest earthquakes of September 5th and 6th off Kii Peninsula, ...
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Application of cluster analysis based on waveform cross correlation coefficients to data recorded by ocean bottom seismometers: results from off the Kii Peninsula
... The Kii Peninsula is located at the central part of the Nankai subduction zone in southwest Japan, where the Philippine Sea Plate subducts along the direction N55°W (Miyazaki and Heki ...
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Possible slow slip event beneath the Kii Peninsula, southwest Japan, inferred from historical tilt records in 1973
... the Kii Peninsula, where 14 SSEs recurrently occur from 1996 to 2012 corresponding to a frequency of less than one per year on average (Nishimura et ...
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Tsunami due to the 2004 September 5th off the Kii peninsula earthquake, Japan, recorded by a new GPS buoy
... Two successive earthquakes of M7.1 (foreshock) and M7.4 (main shock) occurred off of Kii Peninsula, Japan, on September 5th, 2004. They generated significant tsunamis along the southern coast of Japan. ...
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Compound fault rupture during the 2004 off the Kii Peninsula earthquake (M 7 4) inferred from highly resolved coseismic sea surface deformation
... The aim of this study was to reveal the source mecha- nism of the 2004 off the Kii peninsula earthquake. This was due to occurring of two aftershock swarms following the earthquake. The predominant focal ...
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Change of the source mechanism of the main shock of the 2004 off the Kii peninsula earthquakes inferred from long period body wave data
... Based on our analysis, the above observations and discus- sions, we conclude that the main shock of the 2004 off the Kii peninsula earthquakes was a compound event consisting of the two different source ...
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