SEISMICITY OF SAN' IN DISTRICT

Abstract

This study is based on 'the Prompt Report of the Tottori Microearthquake Observatory'. Anactive seismic zone extends along the San'in coast from the Central Tottori Pref. To NorthwesternHyogo Pref, which includes the aftersock area of the Tottori Earthquake in 1943. Analysis wasmade by the method of smoothed radiation pattern. The maximum pressure axis is oriented inN30ーW, and the corresponding k-value is -0.3. The direction of one nordal plane coincides withfault strike of the Tottori Earthquake.This study is based on 'the Prompt Report of the Tottori Microearthquake Observatory'. Anactive seismic zone extends along the San'in coast from the Central Tottori Pref. To NorthwesternHyogo Pref, which includes the aftersock area of the Tottori Earthquake in 1943. Analysis wasmade by the method of smoothed radiation pattern. The maximum pressure axis is oriented inN30ーW, and the corresponding k-value is -0.3. The direction of one nordal plane coincides withfault strike of the Tottori Earthquake

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