4.0

M4.0 Earthquake 3 km E of Jujutla, El SalvadorApril 23, 2026

2026-04-23 10:23:50 UTC (2026-04-23) · approx. 4:23 AM UTC-6 local

MagnitudeM4.0(mb)
Time10:23 UTC4:23 AM UTC-6
Depth68.5 kmshallow crustal
Coordinates13.789°, -89.829°
Felt byNo felt reports
Status✓ Reviewed by USGS

On April 23, 2026 at 10:23 UTC, a magnitude 4.0 shallow crustal earthquake struck 3 km E of Jujutla, El Salvador, at a depth of 68.5 km and coordinates 13.7891°, -89.8288°.

Physical scale: An earthquake of magnitude 4.0 releases seismic energy equivalent to roughly 15 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 347 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 13.79°, -89.83°

Earthquake Details

Magnitude
4.0 mb
Depth
68.5 km
shallow crustal
Location
13.7891°N
-89.8288°E

Technical Information

Event ID
us7000sh9z
Event Type
earthquake
Status
✓ Reviewed
Significance
246
Stations Used
32
Azimuthal Gap
169.0°
Min Station Distance
0.122°
RMS Residual
0.69 sec
Last Updated
2026-05-21 09:29:38 UTC

Common Questions

How strong was the magnitude 4.0 earthquake near Jujutla, El Salvador?

The magnitude 4.0 earthquake that struck 3 km E of Jujutla, El Salvador on April 23, 2026 at 10:23 UTC had a depth of 68.5 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 4.0 earthquakes can continue for several days and gradually diminish over time.

What should I do after an earthquake?

If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.

Authoritative source: USGS event page (event ID: us7000sh9z). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, April 23, 2026). M4.0 Earthquake 3 km E of Jujutla, El SalvadorApril 23, 2026. Retrieved May 25, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000sh9z/