1969 Bohai earthquake

The 1969 Bohai earthquake occurred on July 18, 1969, at 13:24 local time. The epicenter was located in the Bohai Sea, off the coast of Shandong Province, China. The magnitude of this earthquake is Ms 7.4. Areas of maximal intensity were mainly distributed around the estuary of the Yellow River. Ground cracks and sand boils were reported. The earthquake could be felt in Liaoning, Hebei, Beijing, Tianjin, Shanxi, Shandong, and Jiangsu. Ten people were reported dead.[1] This earthquake caused ground surface subsidences of about 15.1 cm ~ 15.8 cm in the Yellow River Delta region.[2] The mechanism of this earthquake was of dextral strike-slip faulting.[3][4] Although it was located near the Tancheng-Lujiang fault zone (郯庐断裂带), some researchers think that this earthquake was dominated by the seaward extending part of the Huanghekou-Liaocheng seismotectonic zone (黄河口-聊城地震构造带).[5]

1969 Bohai earthquake
UTC time1969-07-18 05:24:47
ISC event807162
USGS-ANSSComCat
Local dateJuly 18, 1969 (1969-07-18)
Local time13:24:47
MagnitudeMs 7.4
Depth35 km
Epicenter38.2°N 119.4°E / 38.2; 119.4
Casualties10

See also

References
  1. "1969年7月18日渤海7．4级地震" (in Chinese). Archived from the original on 2016-03-03. Retrieved 2010-10-08.
  2. "黄河三角洲地区地面沉降驱动因素研究" by 刘桂卫, 黄海军, 杜廷芹, 别君, and 陈纪涛
  3. "AGU - American Geophysical Union".
  4. "苏鲁—大别造山带及其周围现代地壳应力场与构造运动区域特征" by 徐纪人 and 赵志新
  5. "营口-潍坊断裂带新生代活动的特征" by 徐杰, 宋长青, and 高战武


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