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分析2004年12月26日印尼苏门答腊M8.9特大地震引起的区域应力场变动,对邻区其他主要潜在震源应变进程产生的影响,并进一步影响亚洲地震活动的格局。从应力转移机制出发,分析大地震沿印澳-欧亚板块边界、印度洋海岭和相邻小板块边界迁移的可能性。根据美国地质调查局全球台网目录分析了该大地震引起的诱发前震(远余震)图像,推测未来几年亚洲等相邻地区大地震发生概率较高的地区。其中包括喜马拉雅带中段和东端,兴都库什-贝加尔地带及印度洋等地区。这类地区涉及中国西藏仲巴、墨脱,新疆乌什、喀什,以及云南等地。
The influence of the regional stress field changes caused by the M8.9 earthquake in Sumatra, Indonesia, on December 26, 2004, on the strain processes of other major potential sources in the adjacent area was analyzed and the pattern of seismic activity in Asia was further affected. Based on the mechanism of stress transfer, the possibility of migration along the boundary of Indo-Australia-Eurasian plate, the Indian Ocean Ridge and adjacent platelets along a large earthquake is analyzed. According to the catalog of the Global Geological Survey of the United States Geological Survey, the image of induced foreshock (far aftershock) caused by the earthquake is analyzed and it is speculated that the probability of occurrence of major earthquakes in the neighboring regions such as Asia will be high in the next few years. These include the middle and eastern Himalayas, the Hindu Kush-Baikal Strip and the Indian Ocean. Such areas involve China’s Tibet Zhongba, Medog, Xinjiang Wushi, Kashi, and Yunnan.