4.1

M4.1 Earthquake 23 km WSW of El Palmarcito, MexicoJuly 27, 2023

2023-07-27 22:08:15 UTC (2023-07-27) · approx. 4:08 PM UTC-6 local

MagnitudeM4.1(mb)
Time22:08 UTC4:08 PM UTC-6
Depth90.1 kmintermediate depth
Coordinates15.443°, -93.430°
Felt byNo felt reports
Status✓ Reviewed by USGS

On July 27, 2023 at 22:08 UTC, a magnitude 4.1 intermediate depth earthquake struck 23 km WSW of El Palmarcito, Mexico, at a depth of 90.1 km and coordinates 15.4432°, -93.4296°.

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 15.44°, -93.43°

Earthquake Details

Magnitude
4.1 mb
Depth
90.1 km
intermediate depth
Location
15.4432°N
-93.4296°E

Technical Information

Event ID
us6000kx69
Event Type
earthquake
Status
✓ Reviewed
Significance
259
Stations Used
23
Azimuthal Gap
158.0°
Min Station Distance
0.330°
RMS Residual
0.45 sec
Last Updated
2023-09-30 21:36:35 UTC

Common Questions

How strong was the magnitude 4.1 earthquake near El Palmarcito, Mexico?

The magnitude 4.1 earthquake that struck 23 km WSW of El Palmarcito, Mexico on July 27, 2023 at 22:08 UTC had a depth of 90.1 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: us6000kx69). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, July 27, 2023). M4.1 Earthquake 23 km WSW of El Palmarcito, MexicoJuly 27, 2023. Retrieved September 30, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000kx69/