4.0
Earthquake Details: 29 km from Ciudad Altamirano, Guerrero, Mexico
Sep 22, 2026, 09:42:38
A magnitude 4.0 earthquake occurred near 29 km from Ciudad Altamirano, Guerrero, Mexico on Sep 22, 2026 at 09:42:38. The seismic event was recorded at a depth of -61.1 km. No tsunami warning was issued.
No Tsunami WarningStatus: ReviewedType: Earthquake
Regional Seismicity
Technical Details
Depth-61.1 km
Significance0
Latitude18.4370
Longitude-100.9300
Event IDemsc:20260922_0000173
Magnitude4.0
Updated:Sep 22, 2026, 10:01:34 UTC
External Resources
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Time & depth
- Local time
- Sep 22, 2026, 03:42:38 CST
- UTC
- Sep 22, 2026, 09:42:38 UTC
-61.1 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby major cities
Nearby event sequence · 12
M3.7Guerrero, MéxicoBeforeM3.6Offshore Oaxaca, MéxicoBeforeM3.7Offshore Guerrero, MéxicoBeforeM3.7Colima, MéxicoBeforeM3.8Guerrero, MéxicoAfterM3.7Offshore Oaxaca, MéxicoAfterM3.6Michoacán, MéxicoAfterM3.8Oaxaca, MéxicoAfterM4.3Guerrero, MéxicoAfterM3.9Guerrero, MéxicoAfterM3.7Offshore Guerrero, MéxicoAfterM3.7Offshore Guerrero, 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: Sep 22, 2026, 10:01 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.