4.1

M4.1 Earthquake 76 km SW of Ocós, Guatemala — February 16, 2023

2023-02-16 22:30:53 UTC (2023-02-16) · approx. 4:30 PM UTC-6 local

MagnitudeM4.1(mb)
Time22:30 UTC≈ 4:30 PM UTC-6
Depth10.0 kmshallow crustal
Coordinates13.968°, -92.630°
Felt byNo felt reports
Status✓ Reviewed by USGS

On February 16, 2023 at 22:30 UTC, a magnitude 4.1 shallow crustal earthquake struck 76 km SW of Ocós, Guatemala, at a depth of 10.0 km and coordinates 13.9677°, -92.6298°.

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.

This earthquake is part of an ongoing aftershock sequence following the magnitude 5.2 mainshock that occurred 28 days ago 85 km SW of Brisas Barra de Suchiate, Mexico. Since the mainshock, the USGS has recorded 2 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 13.97°, -92.63°

Earthquake Details

Magnitude
4.1 mb
Depth
10.0 km
shallow crustal
Location
13.9677°N
-92.6298°E

Technical Information

Event ID
us6000jr91
Event Type
earthquake
Status
✓ Reviewed
Significance
259
Stations Used
12
Azimuthal Gap
220.0°
Min Station Distance
2.142°
RMS Residual
0.25 sec
Last Updated
2023-04-22 21:33:26 UTC

Common Questions

How strong was the magnitude 4.1 earthquake near Ocós, Guatemala?

The magnitude 4.1 earthquake that struck 76 km SW of Ocós, Guatemala on February 16, 2023 at 22:30 UTC had a depth of 10.0 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 4.1 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 4.1 earthquake is an aftershock of the larger magnitude 5.2 mainshock that occurred earlier 85 km SW of Brisas Barra de Suchiate, Mexico. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.

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: us6000jr91). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, February 16, 2023). M4.1 Earthquake 76 km SW of Ocós, Guatemala — February 16, 2023. Retrieved April 22, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000jr91/