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| DOI | 10.1029/2020GL087718 |
| Rupture Process of the 7 January 2020; MW 6.4 Puerto Rico Earthquake | |
| Liu C.; Lay T.; Wang Z.; Xiong X. | |
| 发表日期 | 2020 |
| ISSN | 0094-8276 |
| 卷号 | 47期号:12 |
| 英文摘要 | A vigorous shallow earthquake sequence along the southern coast of Puerto Rico commenced on 28 December 2019 in a region with little prior large seismicity. The largest event in the sequence (MW = 6.4), struck on 7 January 2020 and involved normal faulting. It produced extensive damage in southern Puerto Rico and power disruption across the island. Nearby strong ground motions and static offsets from GPS stations along with teleseismic recordings are inverted for the kinematic rupture process of the mainshock. The ~15-km-long rupture is spatially concentrated, with most slip between 3 and 13 km deep and peak slip of ~1.6 m. The static stress drop is high, ~19 MPa, with the rupture locating in the eastern section of a ~30-km-long band of seismicity bisected by a near-orthogonal lineation. Complex faulting and high stress in the intraplate region appears to be responsible for the high earthquake productivity. ©2020. American Geophysical Union. All Rights Reserved. |
| 英文关键词 | Faulting; High stress; Normal faulting; Puerto Rico; Rupture process; Shallow earthquakes; Static offsets; Static stress; Strong ground motion; Earthquakes; earthquake event; fault geometry; GPS; ground motion; kinematics; rupture; slip rate; teleseismic wave; Puerto Rico |
| 语种 | 英语 |
| 来源期刊 | Geophysical Research Letters
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/170250 |
| 作者单位 | Hubei Subsurface Multi-Scale Imaging Key Laboratory, Institute of Geophysics and Geomatics, China University of Geosciences, Wuhan, China; Department of Earth and Planetary Sciences, University of California, Santa Cruz, CA, United States |
| 推荐引用方式 GB/T 7714 | Liu C.,Lay T.,Wang Z.,et al. Rupture Process of the 7 January 2020; MW 6.4 Puerto Rico Earthquake[J],2020,47(12). |
| APA | Liu C.,Lay T.,Wang Z.,&Xiong X..(2020).Rupture Process of the 7 January 2020; MW 6.4 Puerto Rico Earthquake.Geophysical Research Letters,47(12). |
| MLA | Liu C.,et al."Rupture Process of the 7 January 2020; MW 6.4 Puerto Rico Earthquake".Geophysical Research Letters 47.12(2020). |
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