M4.7 Earthquake 14 km SE of Upala, Costa Rica — November 23, 2023
2023-11-23 07:06:18 UTC (2023-11-23) · approx. 1:06 AM UTC-6 local
On November 23, 2023 at 07:06 UTC, a magnitude 4.7 intermediate depth earthquake struck 14 km SE of Upala, Costa Rica, at a depth of 167.1 km and coordinates 10.8141°, -84.9073°. This earthquake was detected by 119 seismic stations with good location accuracy and was assigned a USGS significance rating of 340, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.7 releases seismic energy equivalent to roughly 169 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.1 km — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-84.9073°E
Technical Information
Common Questions
How strong was the magnitude 4.7 earthquake near Upala, Costa Rica?
The magnitude 4.7 earthquake that struck 14 km SE of Upala, Costa Rica on November 23, 2023 at 07:06 UTC had a depth of 167.1 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 10.8141°, -84.9073°, which is 14 km SE of Upala, Costa Rica.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.7 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: us6000lq88). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, November 23, 2023). M4.7 Earthquake 14 km SE of Upala, Costa Rica — November 23, 2023. Retrieved February 1, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000lq88/