3.5
Earthquake Details: 57 km from Ciudad Altamirano, Guerrero, Mexico
Sep 30, 2026, 21:30:45
A magnitude 3.5 earthquake occurred near 57 km from Ciudad Altamirano, Guerrero, Mexico on Sep 30, 2026 at 21:30:45. The seismic event was recorded at a depth of -75 km. No tsunami warning was issued.
No Tsunami WarningStatus: ReviewedType: Earthquake
Regional Seismicity
Technical Details
Depth-75 km
Significance0
Latitude18.5390
Longitude-101.1740
Event IDemsc:20260930_0000314
Magnitude3.5
Updated:Oct 1, 2026, 02:08:08 UTC
External Resources
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Time & depth
- Local time
- Sep 30, 2026, 15:30:45 CST
- UTC
- Sep 30, 2026, 21:30:45 UTC
-75 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, MéxicoBeforeM4.420 km SW of El Colomo, MéxicoBeforeM3.8Oaxaca, MéxicoBeforeM3.6Offshore Guerrero, MéxicoBeforeM3.4Oaxaca, MéxicoBeforeM4.1Offshore Guerrero, MéxicoBeforeM4.2Offshore Guerrero, MéxicoBeforeM3.8Offshore Guerrero, MéxicoBeforeM3.4Guerrero, MéxicoBeforeM3.6Oaxaca, MéxicoBeforeM3.8Offshore Guerrero, MéxicoBeforeM4.0Oaxaca, MéxicoAfter
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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 1, 2026, 02:08 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.