지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2004.1
- 수록면
- 115 - 123 (9page)
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초록· 키워드
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We present results of a preliminary analysis for sourceparameters of the 29 May 2004 offshore Uljin earthquake. Theanalysis is based on a set of broadband and short period velocityseismograms, and accelerograms recorded by seismic networks insouthern Korea. The estimated parameters of the mainshock are asfolows: origin time 19:14:25.82 in Korean local time (10:14:25.82UT), latitude 36.626N, longitude 130.054 E, depth 18 km, mag-nitude Mw 5.1, stress drop 28 bars, one focal plane 337 , 56 and78 , and the other plane 178 , 36 and 107 in strike, dip and rake,respectively. Three aftershocks of Mw 2.3, 2.0 and 2.4 occurredwithin source region of the mainshock, and two other events of Mw2.5 and 3.5 at epicenters beyond the rupture area are presumed tobe triggered dynamically by the 29 May 2004 earthquake. Thelargest ground acceleration, 2.62 %g, was instrumentally recordedat Pohang, 90.4 km south-west of the mainshock epicenter. Themaximum instrumental intensity is estimated as V and VI in Mod-ified Mercalli Intensity scale excluding and including local effects,respectively. There is a possibility that the mainshock-aftershocksequence and one of the dynamically triggered events are directlyrelated to the Ulleung Fault.
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