4.1

M4.1 Earthquake 41 km SW of Puerto El Triunfo, El SalvadorMarch 12, 2025

2025-03-12 19:36:44 UTC (2025-03-12) · approx. 1:36 PM UTC-6 local

MagnitudeM4.1(mb)
Time19:36 UTC1:36 PM UTC-6
Depth59.3 kmshallow crustal
Coordinates13.026°, -88.829°
Felt byNo felt reports
Status✓ Reviewed by USGS

On March 12, 2025 at 19:36 UTC, a magnitude 4.1 shallow crustal earthquake struck 41 km SW of Puerto El Triunfo, El Salvador, at a depth of 59.3 km and coordinates 13.0264°, -88.8295°.

Physical scale: An earthquake of magnitude 4.1 releases seismic energy equivalent to roughly 21 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 406 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 13.03°, -88.83°

Earthquake Details

Magnitude
4.1 mb
Depth
59.3 km
shallow crustal
Location
13.0264°N
-88.8295°E

Technical Information

Event ID
us6000pyfy
Event Type
earthquake
Status
✓ Reviewed
Significance
259
Stations Used
38
Azimuthal Gap
123.0°
Min Station Distance
0.661°
RMS Residual
1.15 sec
Last Updated
2025-05-17 19:19:57 UTC

Common Questions

How strong was the magnitude 4.1 earthquake near Puerto El Triunfo, El Salvador?

The magnitude 4.1 earthquake that struck 41 km SW of Puerto El Triunfo, El Salvador on March 12, 2025 at 19:36 UTC had a depth of 59.3 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 4.1 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.1 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000pyfy). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, March 12, 2025). M4.1 Earthquake 41 km SW of Puerto El Triunfo, El SalvadorMarch 12, 2025. Retrieved May 17, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000pyfy/