M4.8 Earthquake 0 km SE of San Ignacio, Costa Rica — April 28, 2026
2026-04-28 03:49:47 UTC (2 hours ago) · approx. 9:49 PM UTC-6 local
Felt by 47 people across nearby locations.
On April 28, 2026 at 03:49 UTC, a magnitude 4.8 shallow crustal earthquake struck 0 km SE of San Ignacio, Costa Rica, at a depth of 62.8 km and coordinates 9.7939°, -84.1550°. This earthquake was detected by 63 seismic stations with good location accuracy and was assigned a USGS significance rating of 375, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.8 releases seismic energy equivalent to roughly 239 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.2 km — a useful intuition for the size of the slip patch on the fault.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 47 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
-84.1550°E
Technical Information
Common Questions
How strong was the magnitude 4.8 earthquake near San Ignacio, Costa Rica?
The magnitude 4.8 earthquake that struck 0 km SE of San Ignacio, Costa Rica on April 28, 2026 at 03:49 UTC had a depth of 62.8 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 9.7939°, -84.1550°, which is 0 km SE of San Ignacio, Costa Rica.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.8 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.
Authoritative source: USGS event page (event ID: us7000sglc). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, April 28, 2026). M4.8 Earthquake 0 km SE of San Ignacio, Costa Rica — April 28, 2026. Retrieved April 28, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000sglc/