大地震后短时间内余震活动时空分布的某些研究
SOME INVESTIGATION OF THE TIME AND SPACE DISTRIBUTION OF AFTERSHOCKS WITHIN A VERY SHORT TIME AFTER LARGE EARTHQUAKES
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摘要: 本文研究了近几年来我国发生的一系列强地震以及部分中强地震后,短时间内余震活动的时空分布特征.结果表明,不同类型的地震序列,在大震后短时间内余震频度衰减和余震区的变化过程上有明显差别.作者认为,这种差别有可能作为一次强地震后及时对地震类型和趋势进行判断的依据之一.Abstract: In this paper, it is investigated that the time and space distribution of aftershocks within a very short time after a series of large and moderate earthquakes occurred in China during the last several years. The results show that for various earthquake sequences, there are sensible differences in the attenuation of the frequency and the variation of aftershock region within a very short time after large earthquakes. The present author believes that these differences may provide one of the evidences for judging the seismic sequence type and earthquake tendency after a large shock.
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[1] 王泽皋,邢台余震频度增高及以后发生的华北强震,地震学报,1, 2, 1979.
[2] Teruo Yamashita, Aftershock occurrence due to viscoclastic stress recovery and an estimate of the tectonic stress field near the san audreas fault system, B. S. S. A, 69, 3, 1979,
[3] 王仁等,固体力学基础,地质出版社,1979.
[4] 阿德里安、夏德格,地球动力学原理,科学出版社,1977.[1] 王泽皋,邢台余震频度增高及以后发生的华北强震,地震学报,1, 2, 1979.
[2] Teruo Yamashita, Aftershock occurrence due to viscoclastic stress recovery and an estimate of the tectonic stress field near the san audreas fault system, B. S. S. A, 69, 3, 1979,
[3] 王仁等,固体力学基础,地质出版社,1979.
[4] 阿德里安、夏德格,地球动力学原理,科学出版社,1977. -
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