1622 North Guyuan earthquake
The 1622 North Guyuan earthquake struck Ningxia, China on 25 October with a Richter magnitude of 7.0 and a maximum Mercalli intensity of X (Extreme). It was the only recorded big earthquake in western China for 148 years, between 1561 and 1709.[2] The earthquake occurred on the "rake of the Zhongwei-Tongxin fault", with a mid-seismogenic depth of about 15 kilometres (9.3 mi).[3]
  | |
| Local date | October 25, 1622 |
|---|---|
| Magnitude | 7.0 Ms[1] |
| Epicenter | 36.5°N 106.3°E [1] |
| Max. intensity | X (Extreme) [1] |
| Casualties | 12,000 [1] |
References
- National Geophysical Data Center / World Data Service (NGDC/WDS) (1972), Significant Earthquake Database (Data Set), National Geophysical Data Center, NOAA, doi:10.7289/V5TD9V7K
- Mukherjee, Saumitra (1 May 2006). Earthquake Prediction. CRC Press. p. 22. ISBN 978-90-474-1807-8.
- 地球物理学报. 科学出版社. 2008. p. 1780.
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