Discussion on the feature of strong earthquake: Orderly distribution in time, space and intensity before the Western Kunlun Mountain Pass M=8.1 earthquake

In the paper, the feature of strong earthquake orderly distribution in time, space and intensity before the Western Kunlun Mountain Pass M=8.1 earthquake is preliminarily studied. The modulation and triggering factors such as the earth rotation, earth tides are analyzed. The results show that: the g...

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Bibliographic Details
Published in:Acta seismologica sinica 2003-11, Vol.16 (6), p.598-605
Main Authors: Zhang, Xiao-dong, Zhang, Yong-xian, Lü, Mei-mei, Yu, Su-rong
Format: Article
Language:chi ; eng
Subjects:
Earth rotation
Earth tides
Earthquakes
Magnetic fields
Modulation
Mountains
Seismic activity
Seismic engineering
Seismic phenomena
Sun
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Summary:In the paper, the feature of strong earthquake orderly distribution in time, space and intensity before the Western Kunlun Mountain Pass M=8.1 earthquake is preliminarily studied. The modulation and triggering factors such as the earth rotation, earth tides are analyzed. The results show that: the giant earthquakes with the magnitude more than 8 occurred about every 24 years and the earthquakes with the magnitude more than 7 about every 7 years in Chinese mainland. The Western Kunlun Mountain M=8.1 earthquake exactly occurred at the expected time; The spatial distance show approximately the same distances between each two swarms. The earth rotation, earth tide, sun tide and sun magnetic field have played a role of modulation and triggering in the intensity. At last, the conditions for earthquake generation and occurrence are also discussed.
ISSN:1000-9116
1674-4519
1993-1344
1867-8777
DOI:10.1007/s11589-003-0043-4