On 22 July 2013, a series of earthquakes occurred in Dingxi, Gansu. The first quake struck at 07:45 China Standard Time with an epicenter located at the border of Min County and Zhang County. The magnitude of the initial earthquake was placed at Ms 6.6 by the China Earthquake Data Center with a focal depth of 20.0 kilometres (12 mi). It was measured at Mw 5.9 by the United States Geological Survey (USGS) and Mw 6.0 by the European Alert System. Another strong quake occurred about one hour later, measuring 5.6 magnitude by the USGS. As of 18:00 CST, 22 July 2013, 422 aftershocks had been recorded. The earthquakes were also felt in the nearby cities of Tianshui and Lanzhou in Gansu, as well as Xi'an, Baoji, and Xianyang in neighbouring Shaanxi.
Dingxi earthquakes: A series of earthquakes in Dingxi, China, kills at least 89 people and injures more than 500 others.
On July 22, in the year 2013, Dingxi earthquakes: A series of earthquakes in Dingxi, China, kills at least 89 people and injures more than 500 others. This event is recorded as a Historical Events event in the history of July 22, one of 399 recorded events on this date across all of history.
Key Facts
- This event took place on July 22, 2013 (AD era).
- It is categorised as a Historical Events event in recorded history.
- Referenced in 2 Wikipedia articles.
- The event is associated with a specific geographical location (see map below).
- Wikipedia source last updated on 5 October 2025.
On This Date in History 399
This article draws on content from Wikipedia, available under CC BY-SA 4.0.
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