M3.8 Earthquake 13 km SW of San Marcos, Costa Rica — April 15, 2026
2026-04-15 15:55:01 UTC (4 days ago)
On April 15, 2026 at 15:55 UTC, a magnitude 3.8 shallow crustal earthquake struck 13 km SW of San Marcos, Costa Rica, at a depth of 49.3 km and coordinates 9.5588°, -84.0885°.
Earthquake Details
-84.0885°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 3.8 earthquake near San Marcos, Costa Rica?
The magnitude 3.8 earthquake that struck 13 km SW of San Marcos, Costa Rica on April 15, 2026 at 15:55 UTC had a depth of 49.3 km. For context, this was a minor earthquake typically detected only by instruments.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 3.8 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.
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Understanding This Data
Magnitude 3.8 earthquakes are typically only recorded by instruments.