M4.3 Earthquake 61 km S of Intipucá, El Salvador — March 5, 2023
2023-03-05 23:09:16 UTC (2023-03-05) · approx. 5:09 PM UTC-6 local
On March 5, 2023 at 23:09 UTC, a magnitude 4.3 intermediate depth earthquake struck 61 km S of Intipucá, El Salvador, at a depth of 75.0 km and coordinates 12.6441°, -88.0100°.
Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.
This earthquake is part of an ongoing aftershock sequence following the magnitude 5.5 mainshock that occurred 20 days ago 69 km SSW of Chirilagua, El Salvador. Since the mainshock, the USGS has recorded 0 aftershocks in this area. Aftershock activity is expected to continue for days to weeks as stresses on surrounding faults redistribute.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 1 citizen response 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
-88.0100°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.3 earthquake near Intipucá, El Salvador?
The magnitude 4.3 earthquake that struck 61 km S of Intipucá, El Salvador on March 5, 2023 at 23:09 UTC had a depth of 75.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.3 earthquakes can continue for several days and gradually diminish over time.
Is this the same earthquake as the M5.5 one earlier?
No. This magnitude 4.3 earthquake is an aftershock of the larger magnitude 5.5 mainshock that occurred earlier 69 km SSW of Chirilagua, El Salvador. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.
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Understanding This Data
Magnitude 4.3 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000jhiw). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, March 5, 2023). M4.3 Earthquake 61 km S of Intipucá, El Salvador — March 5, 2023. Retrieved May 15, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000jhiw/