Earthquake Mechanism within the Philippine Sea Plate Subducting beneath the Kanto District, Central Japan
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چکیده
منابع مشابه
Earthquake Mechanisms at the Head of the Philippine Sea Plate beneath the Southern Kanto District, Japan
An analysis has been made of the rupture mechanism of two earthquakes which occurred in the vicinity of the oblique collision beneath the tip of the descending Philippine Sea plate and the Pacific plate beneath Chiba, Japan. The M=6.5 1956 Chiba earthquake occurred in a dense nest of seismicity at a depth of between 70 and 80km beneath Chiba city, and may represent deformation at the tip of the...
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The three-dimensional (3-D) P-wave attenuation (Qp ) structure beneath Kanto, Japan, is estimated by using a large number of waveform data. Corner frequencies of earthquakes are initially calculated from spectral ratios of S-coda waves, followed by an inversion to simultaneously determine attenuation terms and frequency-dependent site amplification factors. The attenuation terms are then invert...
متن کاملA post-Tohoku earthquake review of earthquake probabilities in the Southern Kanto District, Japan
The 2011 Mw 9.0 Tohoku earthquake generated an aftershock sequence that affected a large part of northern Honshu, and has given rise to widely divergent forecasts of changes in earthquake occurrence probabilities in northern Honshu. The objective of this review is to assess these forecasts as they relate to potential changes in the occurrence probabilities of damaging earthquakes in the Kanto R...
متن کاملDeformation of the Manazuru Knoll in Sagami Bay, central Japan, associated with subduction of the Philippine Sea plate
In January 2010, we conducted a multichannel seismic (MCS) reflection survey in Sagami Bay. As a result of this study, the deformation of the Manazuru Knoll, which is located near the plate boundary, was obtained. The Manazuru Knoll was formed by an asymmetric anticline, and the knoll has a geometry that is bent in a shape similar to that of a crank. The anticlinal axis, which was confirmed by ...
متن کاملConstraints on subducting plate strength within the Kermadec trench
[1] Four specially designed surveys parallel to the Kermadec trench allow localized estimates of plate strength within the subducting Pacific plate to be made. The transfer function between topography and gravity is estimated for five trench-parallel ship tracks at distances of 25–110 km from the trench axis. We find a clear reduction in the magnitude and peak wavelength of the transfer functio...
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ژورنال
عنوان ژورنال: Zisin (Journal of the Seismological Society of Japan. 2nd ser.)
سال: 1997
ISSN: 0037-1114,1883-9029,2186-599X
DOI: 10.4294/zisin1948.50.2_203