Deep Long-Period Earthquakes Beneath Mount St. Helens: Their Relationship to Tidal Stress, Episodic Tremor and Slip, and Regular Earthquakes

doi:10.1002/2018GL077063

GSTDTAP > 气候变化

DOI	10.1002/2018GL077063
	Deep Long-Period Earthquakes Beneath Mount St. Helens: Their Relationship to Tidal Stress, Episodic Tremor and Slip, and Regular Earthquakes
	Han, Jiangang 1; Vidale, John E.1,2; Houston, Heidi 1,2; Schmidt, David A.1; Creager, Kenneth C.1
	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:2241-2247
文章类型	Article
语种	英语
国家	USA
英文摘要	Volcanic deep long-period earthquakes (DLPs) have been observed for a long time but remain poorly understood. In this study, 22 catalog DLPs were taken as templates to search for repeating events at Mount St. Helens. During the period from 2007 to 2016, we have detected 277 DLPs. Three templates are isolated DLPs, while all other templates produced matches, identifying loci of repeated activity. Overall, the DLPs show no significant correlation with either the timing of the subduction zone tremor and slow slip west of Mount St. Helens, or the shallow seismicity, or distant earthquakes. Temporal analysis shows an elevated rate of DLPs at times of compressional volumetric tidal stress, suggesting a possible association with magmatic and/or fluid activity. We also observed variable S wave polarization of the DLPs in the most productive DLP source region, indicating source mechanisms are not identical despite the waveform similarity that allowed their detection.
英文关键词	deep long-period earthquakes Mount St Helens subduction zone tremor and slow slip tidal stress volcanic events
领域	气候变化
收录类别	SCI-E
WOS记录号	WOS:000428402400014
WOS关键词	LOW-FREQUENCY EARTHQUAKES ; NON-VOLCANIC TREMOR ; EVENTS BENEATH ; WESTERN JAPAN ; SEISMICITY ; SEISMOLOGY ; KILAUEA ; HAWAII ; ARC
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/26868
专题	气候变化
作者单位	1.Univ Washington, Dept Earth & Space Sci, Seattle, WA 98195 USA; 2.Univ Southern Calif, Dept Earth Sci, Los Angeles, CA USA
推荐引用方式 GB/T 7714	Han, Jiangang,Vidale, John E.,Houston, Heidi,et al. Deep Long-Period Earthquakes Beneath Mount St. Helens: Their Relationship to Tidal Stress, Episodic Tremor and Slip, and Regular Earthquakes[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(5):2241-2247.
APA	Han, Jiangang,Vidale, John E.,Houston, Heidi,Schmidt, David A.,&Creager, Kenneth C..(2018).Deep Long-Period Earthquakes Beneath Mount St. Helens: Their Relationship to Tidal Stress, Episodic Tremor and Slip, and Regular Earthquakes.GEOPHYSICAL RESEARCH LETTERS,45(5),2241-2247.
MLA	Han, Jiangang,et al."Deep Long-Period Earthquakes Beneath Mount St. Helens: Their Relationship to Tidal Stress, Episodic Tremor and Slip, and Regular Earthquakes".GEOPHYSICAL RESEARCH LETTERS 45.5(2018):2241-2247.