Information message about the devastating earthquake in southwest China on August 8, 2017

A devastating earthquake with M = 6.8 occurred on August 8, 2017 at 13:19 GMT (16:19 Moscow time) in Sichuan province on the border with the province of Gansu, 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 8 min after registration to the Ministry of Emergency of the Russian Federation (EMERCOM).

Preliminary processing has been done with data from 18 stations, accurate processing - with data from 70.

The red marker on the map indicates the epicenter of the earthquake, its focus was in Sichuan, China, at a depth of 10 km, 325 km south of Lanzhou, 279 km north of Chengdu and 484 km W-NW of Xi'an .
Time in origin (GMT) Latitude, degree Longitude, degree Depth, km Stations number Ms/N mb/N I0 (calculated) GAP Center
1 13:19:50.2 33.21 104.03 10.0 717 Mw 6.5 14 CSEM
European - Mediterranean seismological center
2 13:19:48.2 33.2 103.83 10.0 70 6.8/34 6.3/43 9.5-10 73 GS RAS(Verified)
Federal research center, Geophysical survey of Russian Academy of Sciences
3 13:19:52.3 33.68 103.89 10.0 18 6.2/11 8-8.5 GS RAS(Preliminary)
Federal research center, Geophysical survey of Russian Academy of Sciences
4 13:19:49.5 33.19 103.85 9.0 103 Mw 6,5 6.1 22 NEIC
National Earthquakes Information Center of US Geological Service