M4.1 Earthquake 2 km ENE of Cuajinicuilapa, Mexico — January 16, 2021
2021-01-16 20:16:36 UTC (2021-01-16) · approx. 1:16 PM UTC-7 local
On January 16, 2021 at 20:16 UTC, a magnitude 4.1 shallow crustal earthquake struck 2 km ENE of Cuajinicuilapa, Mexico, at a depth of 26.6 km and coordinates 16.4821°, -98.3882°.
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.
Earthquake Details
-98.3882°E
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Common Questions
How strong was the magnitude 4.1 earthquake near Cuajinicuilapa, Mexico?
The magnitude 4.1 earthquake that struck 2 km ENE of Cuajinicuilapa, Mexico on January 16, 2021 at 20:16 UTC had a depth of 26.6 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.
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Understanding This Data
Magnitude 4.1 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000dexj). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, January 16, 2021). M4.1 Earthquake 2 km ENE of Cuajinicuilapa, Mexico — January 16, 2021. Retrieved March 27, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000dexj/