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DOI | 10.1002/2017GL076960 |
Fault Rupture Model of the 2016 Gyeongju, South Korea, Earthquake and Its Implication for the Underground Fault System | |
Uchide, Takahiko1; Song, Seok Goo2 | |
2018-03-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:5页码:2257-2264 |
文章类型 | Article |
语种 | 英语 |
国家 | Japan; South Korea |
英文摘要 | The 2016 Gyeongju earthquake (M-L 5.8) was the largest instrumentally recorded inland event in South Korea. It occurred in the southeast of the Korean Peninsula and was preceded by a large M-L 5.1 foreshock. The aftershock seismicity data indicate that these earthquakes occurred on two closely collocated parallel faults that are oblique to the surface trace of the Yangsan fault. We investigate the rupture properties of these earthquakes using finite-fault slip inversion analyses. The obtained models indicate that the ruptures propagated NNE-ward and SSW-ward for the main shock and the large foreshock, respectively. This indicates that these earthquakes occurred on right-step faults and were initiated around a fault jog. The stress drops were up to 62 and 43 MPa for the main shock and the largest foreshock, respectively. These high stress drops imply high strength excess, which may be overcome by the stress concentration around the fault jog. |
英文关键词 | earthquakes finite-fault slip inversion Gyeongju Korean Peninsula fault structure |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000428402400016 |
WOS关键词 | SOURCE PARAMETERS ; INVERSION ; ODAESAN |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/26350 |
专题 | 气候变化 |
作者单位 | 1.Natl Inst Adv Ind Sci & Technol, Geol Survey Japan, Tsukuba, Ibaraki, Japan; 2.Korea Inst Geosci & Mineral Resources KIGAM, Earthquake Res Ctr, Daejeon, South Korea |
推荐引用方式 GB/T 7714 | Uchide, Takahiko,Song, Seok Goo. Fault Rupture Model of the 2016 Gyeongju, South Korea, Earthquake and Its Implication for the Underground Fault System[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(5):2257-2264. |
APA | Uchide, Takahiko,&Song, Seok Goo.(2018).Fault Rupture Model of the 2016 Gyeongju, South Korea, Earthquake and Its Implication for the Underground Fault System.GEOPHYSICAL RESEARCH LETTERS,45(5),2257-2264. |
MLA | Uchide, Takahiko,et al."Fault Rupture Model of the 2016 Gyeongju, South Korea, Earthquake and Its Implication for the Underground Fault System".GEOPHYSICAL RESEARCH LETTERS 45.5(2018):2257-2264. |
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