Imaging an asperity of the 2003 Tokachi-oki earthquake using a dense strong-motion seismograph network
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 کاملESTIMATING THE STRONG-MOTION OF THE DECEMBER 26, 2003 BAM (IRAN), EARTHQUAKE USING STOCHASTIC TECHNIQUES
Abstract : The main objective of this study is estimating the strong motion for the Bam region using the stochastically based seismological models. The two widely used synthetic techniques namely point-source and finite-fault were utilized incorporating the source-path and site parameters into simple function. The decay factor kappa was estimated based on the data obtained from recorded stron...
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 کاملAdvance short - term prediction of the large Tokachi - oki earthquake , September 25 , 2003 , M = 8 . 1 A case history
1International Institute for Earthquake Prediction Theory and Mathematical Geophysics, Russian Ac. Sci., Warshavskoe sh., 79, korp. 2, Moscow, 113556, Russia 2Institute of Geophysics and Planetary Physics, University of California, Los Angeles, California, 90095-1567, U.S.A. 3Department of Earth and Space Sciences, University of California, Los Angeles, California, 90095-1567, U.S.A. 4Earthquak...
متن کاملA State-Space Approach to Explore the Strain Behavior before and after the 2003 Tokachi-Oki Earthquake (M8)1
The Earth’s surface is under the continuous influence of a variety of natural forces and human induced sources. Strain data are good examples of such disturbed signals. To determine the geodetic strain behavior before and after the 2003 Tokachi-oki earthquake (M8.0), we decomposed the disturbed strain data into trend, air pressure, earth tide, and precipitation responses components. The decompo...
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ژورنال
عنوان ژورنال: Geophysical Journal International
سال: 2008
ISSN: 0956-540X,1365-246X
DOI: 10.1111/j.1365-246x.2007.03702.x