4.1
Earthquake Details: 33 km from Ciudad Altamirano, Guerrero, Mexico
Oct 3, 2026, 16:36:34
A magnitude 4.1 earthquake occurred near 33 km from Ciudad Altamirano, Guerrero, Mexico on Oct 3, 2026 at 16:36:34. The seismic event was recorded at a depth of -54 km. No tsunami warning was issued.
No Tsunami WarningStatus: ReviewedType: Earthquake
Regional Seismicity
Technical Details
Depth-54 km
Significance0
Latitude18.2440
Longitude-100.3840
Event IDemsc:20261003_0000210
Magnitude4.1
Updated:Oct 3, 2026, 17:22:19 UTC
External Resources
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Time & depth
- Local time
- Oct 3, 2026, 10:36:34 CST
- UTC
- Oct 3, 2026, 16:36:34 UTC
-54 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby major cities
Nearby event sequence · 12
M3.8Offshore Guerrero, MéxicoBeforeM3.5Michoacán, MéxicoBeforeM4.0Oaxaca, MéxicoBeforeM3.7Offshore Guerrero, MéxicoBeforeM3.8Guerrero, MéxicoBeforeM4.835 km SSW of El Colomo, MéxicoBeforeM4.2Oaxaca, MéxicoBeforeM3.6Offshore Guerrero, MéxicoBeforeM3.7Guerrero, MéxicoBeforeM4.1Guerrero, MéxicoBeforeM3.6Offshore Oaxaca, MéxicoBeforeM3.7Michoacán, MéxicoBefore
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Earthquake information is automatically aggregated from the official seismic agencies listed below. Preliminary measurements can change as agencies review an event; use local emergency authorities for safety decisions. Latest successful data update: Oct 3, 2026, 17:22 UTC.
Data sources:
- USGS — Credit: U.S. Geological Survey.
- EMSC — Credit: EMSC/CSEM. Event catalogue data are provided under CC BY 4.0. CC BY 4.0
- JMA — Source: Japan Meteorological Agency (JMA).
- Geoscience Australia — Based on Australian Earthquakes data by Geoscience Australia. © Commonwealth of Australia. Licensed under CC BY 4.0; the section 5 disclaimer applies. CC BY 4.0
- GeoNet — We acknowledge the New Zealand GeoNet programme and its sponsors NHC, Earth Sciences NZ, LINZ, NEMA and MBIE for providing earthquake data.