M4.9 Earthquake 19 km NNE of San Rafael, Costa Rica — August 24, 2026
2026-08-24 07:37:16 UTC (2026-08-24) · approx. 1:37 AM UTC-6 local
Felt by 91 people across nearby locations.
On August 24, 2026 at 07:37 UTC, a magnitude 4.9 shallow crustal earthquake struck 19 km NNE of San Rafael, Costa Rica, at a depth of 10.0 km and coordinates 10.1662°, -83.9998°. This earthquake was detected by 133 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 421, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.9 releases seismic energy equivalent to roughly 338 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.4 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 91 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
-83.9998°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.9 earthquake near San Rafael, Costa Rica?
The magnitude 4.9 earthquake that struck 19 km NNE of San Rafael, Costa Rica on August 24, 2026 at 07:37 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 10.1662°, -83.9998°, which is 19 km NNE of San Rafael, Costa Rica.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.9 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: us6000tn2j). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, August 24, 2026). M4.9 Earthquake 19 km NNE of San Rafael, Costa Rica — August 24, 2026. Retrieved October 9, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000tn2j/