The Migration Characteristics of Strong Earthquakes on the North-South Seismic Belt and Its Relation with the South Asia Seismic Belt  

作　　者：Wang Yipeng Ma Jin Li Chuanyou 

机构地区：[1]Institute of Geology, China Earthquake Administration, Beijing 100029, China

出　　处：《Earthquake Research in China》2008年第3期237-250,共14页中国地震研究（英文版）

基　　金：the Major Program of the National Natural Science Foundation of China (Grant No.90202018);the National Natural Science Foundation of China (40572125);the Special Social Commonweal Research Programs of the Ministry of Science and Technology of China (2004DIB3J129);the special programs of China Earthquake Administration

摘　　要：Migration of strong earthquakes (M≥7.0) along the North-South Seismic Belt of China since 1500 AD shows three patterns: Approximately equal time and distance interval migration from N to S, varied patterns of migration from S to N and grouped strong earthquake activity in a certain period over the entire seismic belt. Analysis of strong earthquakes in the past hundred years shows that the seismicity on the North-South Seismic Belt is also associated with strong earthquake activities on the South Asia Seismic Belt which extends from Myanmar to Sumatra, Indonesia. Strong earthquakes on the former belt often lag several months or years behind the quakes occurring on the later belt. So, after the occurrence of the December 26, 2004 M_S8.7 great earthquake off the western coast of Sumatra, Indonesia, the possibility of occurrence of strong earthquakes on the North-South Seismic Belt of China cannot be ignored. The above-mentioned migration characteristics of strong earthquakes are related to the northeastward collision and subduction of the India Plate as well as the interaction between the Qinghai-Xizang (Tibet) Plateau and the stable and hard Ordos and Alashan Massifs at its northeastern margin.Migration of strong earthquakes （M≥ 7.0） along the North-South Seismic Belt of China since 1500 AD shows three patterns： Approximately equal time and distance interval migration from N to S, varied patterns of migration from S to N and grouped strong earthquake activity in a certain period over the entire seismic belt. Analysis of strong earthquakes in the past hundred years shows that the seismicity on the North-South Seismic Belt is also associated with strong earthquake activities on the South Asia Seismic Belt which extends from Myanmar to Sumatra, Indonesia. Strong earthquakes on the former belt often lag several months or years behind the quakes occurring on the later belt. So, after the occurrence of the December 26, 2004 Ms8.7 great earthquake off the western coast of Sumatra, Indonesia, the possibility of occurrence of strong earthquakes on the North-South Seismic Belt of China cannot be ignored. The abovementioned migration characteristics of strong earthquakes are related to the northeastward collision and subduction of the India Plate as well as the interaction between the Qinghai-Xizang （Tibet） Plateau and the stable and hard Ordos and Alashan Massifs at its northeastern margin.

关 键 词：The North-South Seismic Belt Migration of strong earthquake The South AsiaSeismic Belt 

分 类 号：P315[天文地球—地震学]