4.0

M4.0 Earthquake 103 km SSW of La Esperanza (El Zapotal), MexicoMarch 4, 2024

2024-03-04 23:26:35 UTC (2024-03-04) · approx. 5:26 PM UTC-6 local

MagnitudeM4.0(mb)
Time23:26 UTC5:26 PM UTC-6
Depth35.0 kmshallow crustal
Coordinates14.543°, -93.416°
Felt byNo felt reports
Status✓ Reviewed by USGS

On March 4, 2024 at 23:26 UTC, a magnitude 4.0 shallow crustal earthquake struck 103 km SSW of La Esperanza (El Zapotal), Mexico, at a depth of 35.0 km and coordinates 14.5429°, -93.4156°.

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.

This earthquake is part of an ongoing aftershock sequence following the magnitude 5.2 mainshock that occurred 9 days ago 85 km SW of El Arenal, Mexico. Since the mainshock, the USGS has recorded 5 aftershocks in this area. Aftershock activity is expected to continue for days to weeks as stresses on surrounding faults redistribute.

Map showing earthquake epicenter at 14.54°, -93.42°

Earthquake Details

Magnitude
4.0 mb
Depth
35.0 km
shallow crustal
Location
14.5429°N
-93.4156°E

Technical Information

Event ID
us7000m46i
Event Type
earthquake
Status
✓ Reviewed
Significance
246
Stations Used
29
Azimuthal Gap
152.0°
Min Station Distance
1.171°
RMS Residual
0.67 sec
Last Updated
2024-05-15 17:35:06 UTC

Common Questions

How strong was the magnitude 4.0 earthquake near La Esperanza (El Zapotal), Mexico?

The magnitude 4.0 earthquake that struck 103 km SSW of La Esperanza (El Zapotal), Mexico on March 4, 2024 at 23:26 UTC had a depth of 35.0 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 4.0 earthquakes can continue for several days and gradually diminish over time.

Is this the same earthquake as the M5.2 one earlier?

No. This magnitude 4.0 earthquake is an aftershock of the larger magnitude 5.2 mainshock that occurred earlier 85 km SW of El Arenal, Mexico. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.

Understanding This Data

Magnitude 4.0 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000m46i). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, March 4, 2024). M4.0 Earthquake 103 km SSW of La Esperanza (El Zapotal), MexicoMarch 4, 2024. Retrieved May 15, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000m46i/