Information message about the strong earthquake in Turkey on February 6, 2023

The second strong earthquake in a day (at the epicenter devastating according to the ShSI-17 scale) with М=7.8 occurred on February 6, 2023 at 10:24 GMT (13:24 Moscow time) in Turkey, 9 hours and 7 minutes after the first shock in 01:17<br /> ShSI-17 - Scale of seismic intensity. Earthquakes. State Standard 57546–2017.

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 28 stations, accurate processing - with data from 62.

The red marker on the map is the epicenter of the second earthquake, the origin of which was in the province of Kahramanmaras, Turkey, at a depth of 10 km, 85 km N-NE of the first strong earthquake on February 6, 2023 at 01:17, 55 km to NE of Kahramanmaras, 105 km N-NW of Gaziantep, 430 km SE of Ankara, the capital of Turkey.
Time in origin (GMT) Latitude, degree Longitude, degree Depth, km Stations number Ms/N mb/N I0 (calculated) GAP Center
1 10:24:49.0 38.04 37.18 10.0 62 7.8/30 6.9/28 11-11.5 65 GS RAS(Verified)
Federal research center, Geophysical survey of Russian Academy of Sciences
2 10:24:54.2 38.27 37.11 33.0 28 6.8/28 7.5-8 GS RAS(Preliminary)
Federal research center, Geophysical survey of Russian Academy of Sciences
3 10:24:49.6 38.1 37.24 10.0 879 Mw 7.5 12 CSEM
European - Mediterranean seismological center
4 10:24:49.3 38.02 37.2 10.0 135 Mw 7.5/58 6.7/99 17 NEIC
National Earthquakes Information Center of US Geological Service