4.2

M4.2 Earthquake 78 km SSE of San Mateo del Mar, MexicoMarch 1, 2023

2023-03-01 22:04:17 UTC (2023-03-01) · approx. 4:04 PM UTC-6 local

MagnitudeM4.2(mb)
Time22:04 UTC4:04 PM UTC-6
Depth35.0 kmshallow crustal
Coordinates15.517°, -94.836°
Felt by1DYFI response
Status✓ Reviewed by USGS

On March 1, 2023 at 22:04 UTC, a magnitude 4.2 shallow crustal earthquake struck 78 km SSE of San Mateo del Mar, Mexico, at a depth of 35.0 km and coordinates 15.5169°, -94.8364°.

Physical scale: An earthquake of magnitude 4.2 releases seismic energy equivalent to roughly 30 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 476 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 15.52°, -94.84°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 1 citizen response to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.

USGS DYFI community-reported intensity map for the M4.2 earthquake near 78 km SSE of San Mateo del Mar, Mexico

Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report

Earthquake Details

Magnitude
4.2 mb
Depth
35.0 km
shallow crustal
Location
15.5169°N
-94.8364°E
Felt Reports
1
DYFI responses
Community Intensity
2.0
CDI from reports

Technical Information

Event ID
us7000jgnl
Event Type
earthquake
Status
✓ Reviewed
Significance
272
Stations Used
45
Azimuthal Gap
142.0°
Min Station Distance
1.251°
RMS Residual
1.42 sec
Last Updated
2023-05-08 02:00:12 UTC

Common Questions

How strong was the magnitude 4.2 earthquake near San Mateo del Mar, Mexico?

The magnitude 4.2 earthquake that struck 78 km SSE of San Mateo del Mar, Mexico on March 1, 2023 at 22:04 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 4.2 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.2 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000jgnl). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, March 1, 2023). M4.2 Earthquake 78 km SSE of San Mateo del Mar, MexicoMarch 1, 2023. Retrieved May 8, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000jgnl/