M4.2 Earthquake 93 km SW of Brisas Barra de Suchiate, Mexico — July 30, 2026
2026-07-30 14:45:23 UTC (2026-07-30) · approx. 8:45 AM UTC-6 local
On July 30, 2026 at 14:45 UTC, a magnitude 4.2 shallow crustal earthquake struck 93 km SW of Brisas Barra de Suchiate, Mexico, at a depth of 10.0 km and coordinates 13.9252°, -92.8289°.
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.
This earthquake is part of an ongoing aftershock sequence following the magnitude 5.7 mainshock that occurred 19 hours ago 95 km SW of Puerto Madero, Mexico. Since the mainshock, the USGS has recorded 11 aftershocks in this area. Aftershock activity is expected to continue for days to weeks as stresses on surrounding faults redistribute.
Earthquake Details
-92.8289°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.2 earthquake near Brisas Barra de Suchiate, Mexico?
The magnitude 4.2 earthquake that struck 93 km SW of Brisas Barra de Suchiate, Mexico on July 30, 2026 at 14:45 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 4.2 earthquakes can continue for several days and gradually diminish over time.
Is this the same earthquake as the M5.7 one earlier?
No. This magnitude 4.2 earthquake is an aftershock of the larger magnitude 5.7 mainshock that occurred earlier 95 km SW of Puerto Madero, Mexico. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.
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Understanding This Data
Magnitude 4.2 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000ti2t). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, July 30, 2026). M4.2 Earthquake 93 km SW of Brisas Barra de Suchiate, Mexico — July 30, 2026. Retrieved August 15, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000ti2t/