4.1

M4.1 Earthquake 6 km SW of Mancuernas, Mexico — July 14, 2021

2021-07-14 16:57:50 UTC (2021-07-14) · approx. 9:57 AM UTC-7 local

MagnitudeM4.1(mb)
Time16:57 UTC≈ 9:57 AM UTC-7
Depth10.0 kmshallow crustal
Coordinates16.355°, -98.160°
Felt byNo felt reports
Status✓ Reviewed by USGS

On July 14, 2021 at 16:57 UTC, a magnitude 4.1 shallow crustal earthquake struck 6 km SW of Mancuernas, Mexico, at a depth of 10.0 km and coordinates 16.3545°, -98.1602°.

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 16.35°, -98.16°

Earthquake Details

Magnitude
4.1 mb
Depth
10.0 km
shallow crustal
Location
16.3545°N
-98.1602°E

Technical Information

Event ID
us6000f1nb
Event Type
earthquake
Status
✓ Reviewed
Significance
259
Azimuthal Gap
185.0°
Min Station Distance
0.049°
RMS Residual
1.01 sec
Last Updated
2021-09-17 22:49:58 UTC

Common Questions

How strong was the magnitude 4.1 earthquake near Mancuernas, Mexico?

The magnitude 4.1 earthquake that struck 6 km SW of Mancuernas, Mexico on July 14, 2021 at 16:57 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.

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: us6000f1nb). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, July 14, 2021). M4.1 Earthquake 6 km SW of Mancuernas, Mexico — July 14, 2021. Retrieved September 17, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000f1nb/