Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL076223 |
Loading Rate Variations Along a Midcrustal Shear Zone Preceding the M(w)6.0 Earthquake of 24 August 2016 in Central Italy | |
Vuan, A.1; Sugan, M.1; Chiaraluce, L.2; Di Stefano, R.2 | |
2017-12-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:24 |
文章类型 | Article |
语种 | 英语 |
国家 | Italy |
英文摘要 | To identify greater detail in the seismicity pattern preceding the 24 August 2016 M(w)6.0 earthquake in Central Italy, we apply waveform matching using 1,028 events as templates. In the 8months before the mainshock, we find similar to 2,000 additional earthquakes mostly located along a subhorizontal shear zone (SZ) bounding at depth the extensional fault system. Asynchrony is observed in the occurrence of events nucleating along the SZ compared to the ones on fault portions embedded in the shallower upper crust, with the former anticipating the latter. Within the SZ, we also observe along-strike seismic migration episodes with earthquakes pointing toward the M(w)6.0 mainshock nucleation zone. These episodes are followed by an apparent quiescence within the main fault area. We suggest that the variations in the seismic activity along the SZ represent the brittle signature of the tectonic loading process enabling portions of the overlaying normal faults to become unlocked. |
英文关键词 | microseismicity template matching 2016 Central Italy earthquake inward fault migration afterslip midcrustal shear zone |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000422954700021 |
WOS关键词 | 6.3 LAQUILA EARTHQUAKE ; CENTRAL APENNINES ; AFTERSHOCKS ; SEISMICITY ; MAGNITUDE ; COMPLETENESS ; COMPLEXITY ; EVOLUTION ; MIGRATION ; CATALOGS |
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/28654 |
专题 | 气候变化 |
作者单位 | 1.Ist Nazl Oceanog & Geofis Sperimentale, OGS, Trieste, Italy; 2.INGV, Rome, Italy |
推荐引用方式 GB/T 7714 | Vuan, A.,Sugan, M.,Chiaraluce, L.,et al. Loading Rate Variations Along a Midcrustal Shear Zone Preceding the M(w)6.0 Earthquake of 24 August 2016 in Central Italy[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(24). |
APA | Vuan, A.,Sugan, M.,Chiaraluce, L.,&Di Stefano, R..(2017).Loading Rate Variations Along a Midcrustal Shear Zone Preceding the M(w)6.0 Earthquake of 24 August 2016 in Central Italy.GEOPHYSICAL RESEARCH LETTERS,44(24). |
MLA | Vuan, A.,et al."Loading Rate Variations Along a Midcrustal Shear Zone Preceding the M(w)6.0 Earthquake of 24 August 2016 in Central Italy".GEOPHYSICAL RESEARCH LETTERS 44.24(2017). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论