Information message about the strong earthquake in Mexico on September 8, 2021

An earthquake (catastrophic at the epicenter on the SHSI-17 scale) with M = 7.2 occurred on September 8, 2021 at 01:47 GMT (04:47 Moscow time) in the state of Guerrero, Mexico.

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 14 min after registration to the Ministry of Emergency of the Russian Federation (EMERCOM).

Preliminary processing has been done with data from 13 stations, accurate processing - with data from 41.

The red marker on the map is the epicenter of the earthquake, it's origin was located in the state of Guerrero, Mexico, at a depth of 10 km, 30 km NE of Acapulco, 57 km S-SE of Chilpancingo and 268 km S-SW of Mexico City, the capital of Mexico.
Time in origin (GMT) Latitude, degree Longitude, degree Depth, km Stations number Ms/N mb/N I0 (calculated) GAP Center
1 01:47:46.0 17.06 -99.68 10.0 41 7.2/29 6.6/25 10-10.5 61 GS RAS(Verified)
Federal research center, Geophysical survey of Russian Academy of Sciences
2 01:48:00.2 17.43 -99.93 100.0 13 6.1/9 4.5-5 164 GS RAS(Preliminary)
Federal research center, Geophysical survey of Russian Academy of Sciences
3 01:47:46.3 16.98 -99.77 10.0 215 Mw 7.0 89 CSEM
European - Mediterranean seismological center
4 01:47:47.9 16.98 -99.77 20.0 158 Mw 7.0/61 6.4/99 69 NEIC
National Earthquakes Information Center of US Geological Service