M4.4 Earthquake 12 km SSE of La Línea, Mexico — October 21, 2021
2021-10-21 20:22:08 UTC (2021-10-21) · approx. 2:22 PM UTC-6 local
On October 21, 2021 at 20:22 UTC, a magnitude 4.4 intermediate depth earthquake struck 12 km SSE of La Línea, Mexico, at a depth of 84.9 km and coordinates 16.0253°, -94.0029°.
Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.
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.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
-94.0029°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.4 earthquake near La Línea, Mexico?
The magnitude 4.4 earthquake that struck 12 km SSE of La Línea, Mexico on October 21, 2021 at 20:22 UTC had a depth of 84.9 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 4.4 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.4 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000fwj3). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, October 21, 2021). M4.4 Earthquake 12 km SSE of La Línea, Mexico — October 21, 2021. Retrieved December 25, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000fwj3/