Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL090949 |
Unusual seismic signals in the Sevier Desert, Utah possibly related to the Black Rock volcanic field | |
Maria Mesimeri; Kristine L. Pankow; William D. Barnhart; Katherine M. Whidden; J. Mark Hale | |
2021-02-16 | |
发表期刊 | Geophysical Research Letters
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出版年 | 2021 |
英文摘要 | On 12 September, 2018 and 14 April, 2019 shallow (<2.5 km from the surface, <1 km relative to sea level) earthquakes (Mw 4.0 and 4.1, respectively) struck a relatively aseismic area in south‐central Utah, within the Black Rock Desert volcanic field. Seismic waveforms are dominated by long‐period energy, no clear direct S‐wave arrivals, and signal durations of ∼100 s. Using co‐seismic interferograms, we detect clear and distinguishable surface deformation confirming the shallowness of the two mainshocks, while full moment tensor solutions rule out an isotropic source, such as an explosion or collapse. For the April 2019 sequence we build an earthquake catalog using a dense temporary geophone array. The enhanced earthquake catalog shows a rapidly decaying aftershock sequence, with 85% of aftershocks occurring during the first three hours. Combining these observations, we argue that these earthquake sequences are related to the Black Rock Desert volcanic field. This article is protected by copyright. All rights reserved. |
领域 | 气候变化 |
URL | 查看原文 |
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/315653 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Maria Mesimeri,Kristine L. Pankow,William D. Barnhart,et al. Unusual seismic signals in the Sevier Desert, Utah possibly related to the Black Rock volcanic field[J]. Geophysical Research Letters,2021. |
APA | Maria Mesimeri,Kristine L. Pankow,William D. Barnhart,Katherine M. Whidden,&J. Mark Hale.(2021).Unusual seismic signals in the Sevier Desert, Utah possibly related to the Black Rock volcanic field.Geophysical Research Letters. |
MLA | Maria Mesimeri,et al."Unusual seismic signals in the Sevier Desert, Utah possibly related to the Black Rock volcanic field".Geophysical Research Letters (2021). |
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