M4.9 Earthquake 33 km WNW of Sardinal, Costa Rica — October 12, 2024
2024-10-12 18:17:51 UTC (2024-10-12) · approx. 12:17 PM UTC-6 local
On October 12, 2024 at 18:17 UTC, a magnitude 4.9 shallow crustal earthquake struck 33 km WNW of Sardinal, Costa Rica, at a depth of 64.7 km and coordinates 10.5949°, -85.9454°. This earthquake was detected by 172 seismic stations with good location accuracy and was assigned a USGS significance rating of 369, 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.
Earthquake Details
-85.9454°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.9 earthquake near Sardinal, Costa Rica?
The magnitude 4.9 earthquake that struck 33 km WNW of Sardinal, Costa Rica on October 12, 2024 at 18:17 UTC had a depth of 64.7 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 10.5949°, -85.9454°, which is 33 km WNW of Sardinal, 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: us6000nyb6). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, October 12, 2024). M4.9 Earthquake 33 km WNW of Sardinal, Costa Rica — October 12, 2024. Retrieved December 23, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000nyb6/