Loading seismic map...
A light magnitude 4.0 earthquake struck near OFFSHORE OAXACA, MEXICO on Wednesday, September 2, 2026 at 03:08:10 AM UTC. This intermediate focal depth (80.0 km depth) released energy equivalent to approximately 15 tons of TNT. Here is the verified UNM telemetry, live epicenter map, and ground shaking assessment.
4.0M
Light Seismic Class
80.0km
Upper Mantle
16.310° N, 94.867° W
GPS Coordinates
15 tons
TNT Equivalent Power
UNM
USGS Real-time Feed
A magnitude 4.0 event is classified as a light earthquake. Noticeable shaking of indoor objects and rattling doors/windows. Generally causes none to slight non-structural damage in older buildings.
The epicenter occurred in a remote or offshore marine sector with no major population centers situated within the primary ground shaking perimeter.
Help seismologists and community members map real-world ground shaking near Mexico.
Your immediate response verifies shaking boundaries and helps ground-truth instrumental models.
Earthquake strength is measured on a logarithmic scale. Compare this event with the full seismic scale:
Because seismic scales are logarithmic, each whole integer increase represents:
Southern and central Mexico lies directly above the Middle America Trench, where the oceanic Cocos and Rivera plates subduct beneath the North American Plate. This active subduction margin produces frequent intermediate and megathrust seismic events.
Originating at a depth of 80.0 km (Upper Mantle / Wadati-Benioff Zone (70–300 km)), this rupture occurred originated within the descending oceanic plate inside the upper mantle. shaking radiates over a wider geographic area with attenuated high frequencies.
Seismologists note that minor aftershocks remain common in the 24 to 48 hours following tremors of magnitude 4.0. According to statistical seismic models, there is roughly a 5% probability of a subsequent event of equal or greater strength occurring in the same fault zone. Residents in Mexico are advised to check living spaces for unsecured items.
Add Earthquake Today as a Preferred Source in Google to see real-time seismic alerts, epicenter maps, and aftershock telemetry highlighted in Top Stories & AI Overviews.
Monitor live earthquakes, historical magnitude leaders, and regional tectonic activity across the globe.