1622 North Guyuan earthquake

1622 North Guyuan earthquake

Local date	October 25, 1622 (1622-10-25)
Magnitude	7.0 Ms[1]
Epicenter	36.5°N 106.3°E / 36.5; 106.3[1]
Max. intensity	MMI X (Extreme)[1]
Casualties	12,000[1]

The 1622 North Guyuan earthquake struck Ningxia, China on 25 October with a magnitude of 7.0 M_s 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]

See also

• List of earthquakes in China
• List of historical earthquakes

References

1. National Geophysical Data Center / World Data Service (NGDC/WDS) (1972), Significant Earthquake Information, National Geophysical Data Center, NOAA, doi:10.7289/V5TD9V7K
2. Mukherjee, Saumitra (1 May 2006). Earthquake Prediction. CRC Press. p. 22. ISBN 978-90-474-1807-8.
3. 地球物理学报. 科学出版社. 2008. p. 1780.