4.0
Earthquake Details: 58 km from Vallenar, Atacama, Chile
Sep 20, 2026, 10:17:59
A magnitude 4.0 earthquake occurred near 58 km from Vallenar, Atacama, Chile on Sep 20, 2026 at 10:17:59. The seismic event was recorded at a depth of -45.5 km. No tsunami warning was issued.
No Tsunami WarningStatus: ReviewedType: Earthquake
Regional Seismicity
Technical Details
Depth-45.5 km
Significance0
Latitude-28.8400
Longitude-71.2700
Event IDemsc:20260920_0000129
Magnitude4.0
Updated:Sep 20, 2026, 10:29:20 UTC
External Resources
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Time & depth
- Local time
- Sep 20, 2026, 07:17:59 GMT-3
- UTC
- Sep 20, 2026, 10:17:59 UTC
-45.5 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby major cities
Nearby event sequence · 12
M4.434 km NW of Coquimbo, ChileBeforeM3.5Atacama, ChileBeforeM3.6San Juan, ArgentinaAfterM3.8Catamarca, ArgentinaAfterM3.9Atacama, ChileAfterM4.233 km NNW of La Serena, ChileAfterM5.351 km WSW of Arauco, ArgentinaAfterM3.4Offshore Coquimbo, ChileAfterM4.3Offshore Atacama, ChileAfterM3.9Coquimbo, ChileAfterM3.5Coquimbo, ChileAfterM3.7Coquimbo, ChileAfter
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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 20, 2026, 10:29 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.