A Non-Poissonian Element in the Seismicity of the Northeastern United States
A Non-Poissonian Element in the Seismicity of the Northeastern United States
复制标题
美国东北部地震活动中的非泊松因素
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
A. Kafka
中科院分区：
文献类型：
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作者：
J. Ebel;A. Kafka
美国东北部增生地体地区发生的 M ≥ 2.7 级地震（1975-2000 年）在时间上的聚集性比随机过程预期的要高。即使余震已从地震目录中删除，这种聚集现象仍然很明显。聚类事件对之间的距离均匀分布在 20 公里到 400 公里以上之间。目前尚不清楚为什么会发生这种聚集。奇怪的是，在北美克拉通魁北克附近的地震中，没有发现统计上显着的时间聚类。
手稿于 2001 年 7 月 24 日收到。
Earthquakes of M ≥ 2.7 (1975-2000) in the accreted-terranes region of the northeastern United States are more temporally clustered than expected from a random process. This clustering is evident even when aftershocks have been removed from the earthquake catalog. The distances between clustered event pairs are uniformly distributed between 20 km and over 400 km. It is not clear why this clustering is occurring. Curiously, statistically significant temporal clustering was not found for earthquakes from nearby Quebec on the North American craton.
Manuscript received 24 July 2001.