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Accession number;99A0960531
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| Title;Study of Focal Mechanisms in Eastern and Central Areas of Tottori Prefecture. |
| Author;
NISHIYAMA HIROSHI
(Tottori Univ.)
NISHIDA RYOHEI
(Tottori Univ.)
NAKAO SETSURO
(Kyoto Univ., Disaster Prevention Res. Inst., Center for Earthquake Predict)
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Journal Title;Journal of the Seismological Society of Japan. Second Series
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Journal Code:G0931A
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ISSN:0037-1114
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VOL.52;NO.2;PAGE.271-281(1999)
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| Figure&Table&Reference;FIG.13, REF.24 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;The tectonic stress, which was found from focal mechanisms of earthquakes in the eastern and the central area of Tottori prefecture, were investigated. Focal mechanisms in this area were the strike slip type of WNW-ESE compression, which is nearly agreed with the mechanism of the 1943 Tottori earthquake. Tectonic stress in this area has conserved the same pattern as the Tottori earthquake, 1943. But the seismic activity near the Yoshioka-Shikano faultsystem shows lower than the other regions. Though their focal mechanisms show a large irregularity, the averaged P-axis indicates NW-SE compression compatible with the strike of the Yoshioka-Shikano faultsystem. This may be attributed to the situation that this area agrees approximately with the bright spots of the 1943 Tottori earthquake. (author abst.) |
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