M4.6 Earthquake 68 km SSW of Acajutla, El Salvador — September 23, 2020
2020-09-23 20:42:52 UTC (2020-09-23) · approx. 2:42 PM UTC-6 local
On September 23, 2020 at 20:42 UTC, a magnitude 4.6 shallow crustal earthquake struck 68 km SSW of Acajutla, El Salvador, at a depth of 35.0 km and coordinates 13.0288°, -90.0810°.
Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 120 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 899 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-90.0810°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.6 earthquake near Acajutla, El Salvador?
The magnitude 4.6 earthquake that struck 68 km SSW of Acajutla, El Salvador on September 23, 2020 at 20:42 UTC had a depth of 35.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 13.0288°, -90.0810°, which is 68 km SSW of Acajutla, El Salvador.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: us6000c09c). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, September 23, 2020). M4.6 Earthquake 68 km SSW of Acajutla, El Salvador — September 23, 2020. Retrieved December 5, 2020 from https://www.earthquaketracker.org/earthquakes/event/us6000c09c/