Re-digitization of Strong Motion Accelerogram at Hachinohe Harbor during the 1968 Tokachi-oki, Japan Earthquake
نویسندگان
چکیده
منابع مشابه
Analysis of seafloor seismograms of the 2003 Tokachi-Oki earthquake sequence for earthquake early warning
[1] Earthquake Early Warning (EEW) algorithms estimate the magnitude of an underway rupture from the first few seconds of the P-wave to allow hazard assessment and mitigation before the S-wave arrival. Many large subductionzone earthquakes initiate 50–150 km offshore, potentially allowing seafloor instruments sufficient time to identify large ruptures before the S-waves reach land. We tested an...
متن کاملThe SanrikuOki, Japan, Earthquake of December 28, 1994 Mw 7.7 Rupture of a different asperity from a previous earthquake
Fault geometry, depth, and slip distribution of the Sanriku-oki earthquake of December 28, 1994 (Ms 7.5) are estimated from seismic waveforms, geodetic measurements, and tsunami waveforms, and compared with those of the 1968 Tokachi-oki earthquake (Mw 8.2), the most recent large earthquake in the epicentral region. Seismic wave inversions indicate a shallowly dipping thrust type mechanism and t...
متن کاملFault friction parameters inferred from the early stages of afterslip following the 2003 Tokachi-oki earthquake
[1] We use subdaily GPS time series of positions in the first 5 hours following the 2003 Tokachi-oki earthquake (Mw = 8.0) located offshore of Hokkaido, Japan, to estimate frictional parameters for the afterslip zone on the subduction interface. The data show little motion immediately after the earthquake with sudden acceleration at about 1.2 hours after the main shock. This coincides with the ...
متن کاملSource rupture process of the 2011 Tohoku - Oki earthquake derived from the strong - motion records
We reveal the source rupture process using the strong-motion data by the inversion analysis. The derived slip distribution shows one prominently large slip area extending from the hypocentre area to the shallow part of the fault along the trench axis, which is located far off the coastal region extensively damaged by the tsunamis. The shallow main rupture started 60 seconds after the initial br...
متن کاملSurface latent heat flux and nighttime LF anomalies prior to the Mw=8.3 Tokachi-Oki earthquake
Surface Latent Heat Flux (SLHF) is an atmospheric parameter proportional to the evaporation from the Earth’s surface. SLHF has been found to exhibit an anomalous behavior in the epicentral region prior to several coastal earthquakes. Sub-ionospheric low frequency (LF) radio sounding measurements have shown its potentiality for the short-term earthquake forecasting since the last decade. The ano...
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ژورنال
عنوان ژورنال: Journal of Japan Association for Earthquake Engineering
سال: 2010
ISSN: 1884-6246
DOI: 10.5610/jaee.10.2_12