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
- 2015.1
- 수록면
- 295 - 303 (9page)
이용수
초록· 키워드
오류제보하기
We have analyzed two 2013 earthquake sequences from the Yellow Sea of Korea, expecting to provide basic information on offshore seismogenic structures of western Korea. The doubledifference technique with Lg-wave cross-correlation enabled our computation of accurate epicenters for small earthquakes. Including 24 events newly detected by cross-correlation, we relocated 55 events that occurred south of Baekryeong Island after May 17. We employed six stations, including a station 210 km from the epicenters to reduce the azimuthal gap. Relocated epicenters tightly clustered, and led us to deduce a possible rupture plane. We clearly separated two clusters using waveform similarity classification of Lg coda that suggests an east–west strike for the fault-plane solution of the mainshock (Mw 4.9). Offshore of the city of Boryeong, more than 150 earthquakes occurred from July through August, which is abnormal seismicity for Korea. We relocate 149 epicenters displaying high waveform similarity using 11 stations with an azimuthal gap exceeding 130o. Relocated epicenters form a 700-m line with clear northeastward progression during the period, and correspond well with the northeast–southwest strike of the fault-plane solution for the largest event (ML 3.8). From the sequence, we classified two spatiotemporally separated clusters by Lg-coda waveform similarity. The clearly observed moveout of Pg arrivals have validated our relocation results.
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등록된 정보가 없습니다.
참고문헌 (28)
참고문헌 신청
Buurman, H. / 2006 / Seismic precursors to volcanic explosions during the 2006 eruption of Augustine Volcano in The 2006 eruption of Augustine Volcano. U.S :41~57
Buurman, H. / 2009 / The seismicity of the 2009 redoubt eruption / Journal of Volcanology and Geothermal Research 259:16~30
Hauksson, E. / 2005 / Southern California hypocenter relocation with waveform cross-correlation, Part 1: Results using the double-difference method / Bulletin of the Seismological Society of America 95:896~903
Hauksson, E. / 1981 / Waveform relocated earthquake catalog for southern California (1981 to June 2011) / Bulletin of the Seismological Society of America 102:2239~2244
강태섭 / 2006 / The offshore Uljin, Korea, earthquake sequence of April 2006: seismogenesis in the western margin of the Ulleung Basin / Geosciences Journal 10(2):159~164
Buurman, H. / 2009 / The seismicity of the 2009 redoubt eruption / Journal of Volcanology and Geothermal Research 259:16~30
Hauksson, E. / 2005 / Southern California hypocenter relocation with waveform cross-correlation, Part 1: Results using the double-difference method / Bulletin of the Seismological Society of America 95:896~903
Hauksson, E. / 1981 / Waveform relocated earthquake catalog for southern California (1981 to June 2011) / Bulletin of the Seismological Society of America 102:2239~2244
강태섭 / 2006 / The offshore Uljin, Korea, earthquake sequence of April 2006: seismogenesis in the western margin of the Ulleung Basin / Geosciences Journal 10(2):159~164
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