Information message about a strong earthquake in Oaxaca, Mexico, February 16, 2018.

A strong earthquake with M = 7.4 occurred on February 16, 2018 at 23:39 GMT (February 17 at 02:39 Moscow time) in the state of Oaxaca, 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 15 min after registration to the Ministry of Emergency of the Russian Federation (EMERCOM).

Preliminary processing has been done with data from 20 stations, accurate processing - with data from 37.

The red marker on the map presents the epicenter of the earthquake, the origin of which was in the state of Oaxaca, Mexico, at a depth of 10 km, 113 km W-SW of Oaxaca, 210 km E-SE of Chilpancingo de los, Bravo and 337 km SE 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 23:39:36.6 16.74 -97.71 10.0 37 7.4/20 6.7/21 10.5-11 74 GS RAS(Verified)
Federal research center, Geophysical survey of Russian Academy of Sciences
2 23:39:35.9 16.31 -98.39 10.0 20 6.5/15 9-9.5 GS RAS(Preliminary)
Federal research center, Geophysical survey of Russian Academy of Sciences
3 23:39:39.5 16.61 -97.72 10.0 158 Mw 7.2 77 CSEM
European - Mediterranean seismological center
4 23:39:42.2 16.65 -97.65 24.6 198 Mw 7.2 6.6 80 NEIC
National Earthquakes Information Center of US Geological Service