M4.7 Earthquake in the Galapagos Triple Junction region — February 21, 2023
2023-02-21 18:51:00 UTC (2023-02-21) · approx. 11:51 AM UTC-7 local
On February 21, 2023 at 18:51 UTC, a magnitude 4.7 shallow crustal earthquake struck in the Galapagos Triple Junction region, at a depth of 10.0 km and coordinates 2.1626°, -100.9803°. This earthquake was detected by 183 seismic stations with excellent 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
-100.9803°E
Technical Information
Common Questions
How strong was the magnitude 4.7 earthquake in the Galapagos Triple Junction region?
The magnitude 4.7 earthquake that struck in the Galapagos Triple Junction region on February 21, 2023 at 18:51 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 2.1626°, -100.9803°, which is in the Galapagos Triple Junction region.
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.
Actions
Authoritative source: USGS event page (event ID: us6000jqls). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, February 21, 2023). M4.7 Earthquake in the Galapagos Triple Junction region — February 21, 2023. Retrieved April 29, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000jqls/