Japan Geoscience Union Meeting 2016

Presentation information


Symbol S (Solid Earth Sciences) » S-SS Seismology

[S-SS30] Seismicity

Wed. May 25, 2016 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall HALL6)

Convener:*Yoshinari Hayashi(Faculty of Safety Science, Kansai University)

5:15 PM - 6:30 PM

[SSS30-P12] Re-evaluation of Hypocenter of the Sakurajima Earthquake on January 12,1914

*Makoto Ogata1, Satoshi Iwata2, Kazuhiko Goto3 (1.Kagoshima Local Meteorological offices,JMA, 2.Fukuoka Regional Headquarters,JMA, 3.NOEV, Kagoshima Univ.)

Keywords: The Sakurajima Earthquake on January 12,1914, smoked-paper seismogram record, first motion analysis, S-P time (Duration of Preliminary Tremor), hypocenter determination

The hypocenter of the Sakurajima Earthquake on January 12,1914 is Kagoshima-Bay in general.
The 100th anniversary passes from 1914 Eruption of Sakurajima, we determine hypocenter of this earthquake by using selected S-P time data not only reported ones but also re-measured from smoked-paper seismograms. As a result, the hypocenter is revealed near by Kagoshima-city.
The direction of first motion of smoked-paper seismogram recorded at of the Kagoshima meteorological observatory shows the hypocenter being located SE from the Kagoshima meteorological observatory.