Relationship between faults and generation of inland shallow earthquakes: enlightenment of the M=7.2 southern Hyogo prefecture earthquake |
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Authors: | Toru Ouchi and Qing-Hua Huang |
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Institution: | (1) Research Center for Urban Safety and Security, Kobe University, 657 Kobe, Japan;(2) Department of Earth and Space Sciences, Graduate School of Science, Osaka University, 560 Osaka, Japan |
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Abstract: | The M=7.2 southern Hyogo prefecture earthquake, which occurred on January 17, 1995, destroyed the region severely. Further researches
are necessary to explain the problems obtained from this earthquake. We have discussed some characteristics correlating with
this earthquake, such as distribution of aftershocks and disaster, relationship between fault and generation of inland shallow
earthquakes, strong motion and so on. The tectonic movements of surface faults may be different from those of deep faults.
Earthquakes may not be restricted directly by the tectonic movements of surface faults. The strong motion zone is often appeared
in the region a little away from the both ends or from the single side of a fault instead of the region of a focal fault.
Some mechanisms of strong motion have also been discussed. |
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Keywords: | inland shallow earthquakes fault earthquake hazard strong motion |
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