M4.6 Earthquake in the Mariana Islands region — April 15, 2026
2026-04-15 23:19:31 UTC (3 days ago)
On April 15, 2026 at 23:19 UTC, a magnitude 4.6 shallow crustal earthquake struck in the Mariana Islands region, at a depth of 10.0 km and coordinates 21.9039°, 145.7492°. This earthquake was detected by 65 seismic stations with good location accuracy and was assigned a USGS significance rating of 326, placing it among routine seismic activity.
Earthquake Details
145.7492°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.6 earthquake in the Mariana Islands region?
The magnitude 4.6 earthquake that struck in the Mariana Islands region on April 15, 2026 at 23:19 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 21.9039°, 145.7492°, which is in the Mariana Islands region.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 earthquakes can continue for several days and gradually diminish over time.
What should I do after an earthquake?
If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.