Seismic characteristics near the epicenter of the 1303 Hongtong M=8 earthquake, Shanxi Province and its implication |
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Authors: | Wang Jian Wu Xuan Zhang Xiao-dong and Wang Su-yun |
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Institution: | (1) Institute of Geophysics, China Earthquake Administration, 100081 Beijing, China |
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Abstract: | In this paper, we calculated the seismic pattern of instrumental recorded small and moderate earthquakes near the epicenter
of the 1303 Hongtong M=8 earthquake, Shanxi Province. According to the spatial distribution of small and moderate earthquakes, 6 seismic dense zones
are delineated. Temporal distribution of M
L≥2 earthquakes since 1970 in each seismic dense zone has been analyzed. Based on temporal distribution characteristics and
historical earthquake activity, three types of seismicities are proposed. The relationship between seismic types and crustal
medium is analyzed. The mechanism of three types is discussed. Finity of strong earthquake recurrence is proposed. Seismic
hazard in mid-long term and diversity of earthquake disaster in Shanxi seismic belt are discussed.
Foundation item: Key Science Research Project (100501-05-09) from China Earthquake Administration during the tenth Five-year Plan.
Contribution No. 04FE1009, Institute of Geophysics, China Earthquake Administration. |
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Keywords: | seismicity local crustal medium mid-long term earthquake prediction Shanxie arthquake strong earthquake recurrence earthquake disaster |
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