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DOI | 10.1029/2019GL085158 |
Characteristics of Shallow Low-Frequency Earthquakes off the Kii Peninsula, Japan, in 2004 Revealed by Ocean Bottom Seismometers | |
Tamaribuchi, Koji1; Kobayashi, Akio1; Nishimiya, Takahito1; Hirose, Fuyuki1; Annoura, Satoshi2 | |
2019-12-03 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:23页码:13737-13745 |
文章类型 | Article |
语种 | 英语 |
国家 | Japan |
英文摘要 | The characteristics of shallow low-frequency earthquakes (LFEs) are related to stress changes on the shallow plate boundary, which are important for understanding the megathrust earthquake cycle. The 5 September 2004 off the Kii Peninsula earthquakes (M-JMA = 7.1, 7.4) occurred near the Nankai trough subduction zone, off southwest Japan. Ocean bottom seismometer observations from 22 September to 30 November 2004 detected many shallow LFEs among the ordinary aftershocks. During the observation period, the frequency of shallow LFEs steadily decayed with the exception of episodic activities, which were very sensitive to stress changes caused by tides and the 23 October 2004 Niigata earthquake (M-JMA = 6.8). We also confirmed correlations between shallow LFEs and shallow very low frequency earthquakes, which suggest that these slow events represent the same slip phenomenon. These findings will contribute to clarifying the impact of LFEs on megathrust earthquakes. |
英文关键词 | slow earthquake shallow low-frequency earthquake Nankai Trough tidal response |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000500019900001 |
WOS关键词 | SLOW EARTHQUAKES ; SITE AMPLIFICATION ; NANKAI TROUGH ; SEA-FLOOR ; DYNAMIC DEFORMATION ; TREMOR ; SUBDUCTION ; OFFSHORE ; NETWORK |
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/225148 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Japan Meteorol Agcy, Meteorol Res Inst, Tsukuba, Ibaraki, Japan; 2.Japan Meteorol Agcy, Sendai Reg Headquarters, Sendai, Miyagi, Japan |
推荐引用方式 GB/T 7714 | Tamaribuchi, Koji,Kobayashi, Akio,Nishimiya, Takahito,et al. Characteristics of Shallow Low-Frequency Earthquakes off the Kii Peninsula, Japan, in 2004 Revealed by Ocean Bottom Seismometers[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(23):13737-13745. |
APA | Tamaribuchi, Koji,Kobayashi, Akio,Nishimiya, Takahito,Hirose, Fuyuki,&Annoura, Satoshi.(2019).Characteristics of Shallow Low-Frequency Earthquakes off the Kii Peninsula, Japan, in 2004 Revealed by Ocean Bottom Seismometers.GEOPHYSICAL RESEARCH LETTERS,46(23),13737-13745. |
MLA | Tamaribuchi, Koji,et al."Characteristics of Shallow Low-Frequency Earthquakes off the Kii Peninsula, Japan, in 2004 Revealed by Ocean Bottom Seismometers".GEOPHYSICAL RESEARCH LETTERS 46.23(2019):13737-13745. |
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