Information message about the strong earthquake in Sichuan province, China, September 15, 2021

An earthquake (strong at the epicenter on the SHSI-17 scale) with M = 5.2 occurred on September 15, 2021 at 20:33 GMT (2333 Moscow time) in Sichuan province, China.

Parameters of the earthquake have been determined in the Alert Service (AS) of Information Processing Center (IPC) of Geophysical Survey of RAS in Obninsk with station data obtained from digital and analog seismic stations of Russia, countries of CIS and from abroad. Alert message on this earthquake has been delivered in 6 min after registration to the Ministry of Emergency of the Russian Federation (EMERCOM).

Preliminary processing has been done with data from 11 stations, accurate processing - with data from 66.

The red marker on the map is the epicenter of the earthquake, it's origin was located in Sichuan Province, China at a depth of 20 km, 117 km W-SW of Chongqing, 202 km SE of Chengdu and 327 km N-NW of Guiyang.
Time in origin (GMT) Latitude, degree Longitude, degree Depth, km Stations number Ms/N mb/N I0 (calculated) GAP Center
1 20:33:34.0 29.27 105.35 20.0 66 5.2/36 6.2/50 6-6.5 GS RAS(Verified)
Federal research center, Geophysical survey of Russian Academy of Sciences
2 20:33:30.5 29.11 105.36 10.0 11 6.1/11 8-8.5 GS RAS(Preliminary)
Federal research center, Geophysical survey of Russian Academy of Sciences
3 20:33:32.2 29.21 105.36 20.0 734 Mw 5.4 13 CSEM
European - Mediterranean seismological center
4 20:33:32.3 29.18 105.39 10.0 131 Mw 5.4 5.9/99 19 NEIC
National Earthquakes Information Center of US Geological Service