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首页> 外文期刊>Seismological research letters >Possible Triggered Seismicity Signatures Associated with the Vrancea Intermediate- Depth Strong Earthquakes (Southeast Carpathians, Romania)
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Possible Triggered Seismicity Signatures Associated with the Vrancea Intermediate- Depth Strong Earthquakes (Southeast Carpathians, Romania)

机译:与Vrancea中深度强地震有关的可能的触发地震特征(罗马尼亚东南喀尔巴阡)

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摘要

To date, no generally applicable procedure is available for distinguishing triggered earthquakes from other seismic events that occur, apparently randomly, within a certain region (see discussion in van der Elst and Brodsky, 2010). In particular, it is not habitual to utilize diagrams illustrating the time evolution of the seismic release (e.g., Mantovani et al., 1987; Husen et al., 2004) as a diagnostic tool. However, that investigation method has been shown in the present study to be outstandingly useful for highlighting similarities existing between the patterns of seismic activities recorded in two distinct and possibly interacting lithospheric domains associated with the Carpathians orogenic belt in Romania. The main potentially causative earthquakes occurred in the Vrancea seismic zone (hereafter VSZ), located at intermediate depths (60-180 km) beneath the southeast Carpathian Arc bend (Fig. 1), whereas the resulting seismicity enhancements (recorded several months to tens of months afterward) developed at less than 60 km depth in the adjoining Carpathians-foredeep region.
机译:迄今为止,尚无可用于区分触发地震与在一定区域内显然随机发生的其他地震事件的一般适用程序(请参见van der Elst和Brodsky,2010年的讨论)。特别地,不是习惯性地使用说明地震释放的时间演变的图表(例如,Mantovani等,1987; Husen等,2004)作为诊断工具。但是,该研究方法已在本研究中显示出突出显示与罗马尼亚喀尔巴阡造山带相关的两个不同且可能相互作用的岩石圈区域中记录的地震活动模式之间的相似性的出色用途。主要的潜在致震性地震发生在东南喀尔巴阡弧形弯曲(图1)下方中等深度(60-180 km)的Vrancea地震带(以下简称VSZ)中,而由此引起的地震活动性增强(记录了数月至数十年)。几个月后)在毗邻的喀尔巴阡前缘深部地区发展不到60公里。

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