M4.0 Earthquake 1 km E of Santa María Tiltepec, Mexico — June 22, 2021
2021-06-22 15:13:11 UTC (2021-06-22) · approx. 9:13 AM UTC-6 local
On June 22, 2021 at 15:13 UTC, a magnitude 4.0 shallow crustal earthquake struck 1 km E of Santa María Tiltepec, Mexico, at a depth of 35.9 km and coordinates 16.0641°, -97.1548°.
Physical scale: An earthquake of magnitude 4.0 releases seismic energy equivalent to roughly 15 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 347 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
-97.1548°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.0 earthquake near Santa María Tiltepec, Mexico?
The magnitude 4.0 earthquake that struck 1 km E of Santa María Tiltepec, Mexico on June 22, 2021 at 15:13 UTC had a depth of 35.9 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 4.0 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.0 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000eiwq). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, June 22, 2021). M4.0 Earthquake 1 km E of Santa María Tiltepec, Mexico — June 22, 2021. Retrieved August 27, 2021 from https://www.earthquaketracker.org/earthquakes/event/us7000eiwq/