Information message about a strong earthquake in the Mariana Islands, April 5, 2024.

An earthquake with M=6.9 occurred on April 5, 2024 at 11:03 am Greenwich time (14:03 am Moscow time) in the Pacific Ocean in the Mariana Islands area.

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

Preliminary processing has been done with data from 10 stations, accurate processing - with data from 70.

The red marker on the map is the epicenter of the earthquake, the origin of which was in the Pacific Ocean in the Mariana Islands at a depth of 210 km, 100 km N-NW of Shomushon, 427 km N of Chalan Kanoa.
Time in origin (GMT) Latitude, degree Longitude, degree Depth, km Stations number Ms/N mb/N I0 (calculated) GAP Center
1 11:03:14.0 19.01 145.44 210.0 70 6.9/44 140 GS RAS(Verified)
Federal research center, Geophysical survey of Russian Academy of Sciences
2 11:03:11.3 19.07 145.07 160.0 10 6.8/10 5.5-6 GS RAS(Preliminary)
Federal research center, Geophysical survey of Russian Academy of Sciences
3 11:03:15.4 19.1 145.4 215.0 468 Mw 6.8 6.7/308 24 CSEM
European - Mediterranean seismological center
4 11:03:16.4 19.1 145.39 222.0 192 Mw 6.8/136 6.9/813 31 NEIC
National Earthquakes Information Center of US Geological Service