3.4
Earthquake Details: Antofagasta, Chile
8/20/2026, 2:14:26 AM
A magnitude 3.4 earthquake occurred near Antofagasta, Chile on 8/20/2026 at 2:14:26 AM. The seismic event was recorded at a depth of -163.9 km. No tsunami warning was issued.
No Tsunami WarningStatus: reviewedType: earthquake
Regional Seismicity
Technical Details
Depth-163.9 km
Significance0
Latitude-23.0900
Longitude-68.1600
Event IDemsc:20260820_0000072
Magnitude3.4
Updated:8/20/2026, 5:52:29 AM
External Resources
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Time & depth
- Local time
- 8/19/2026, 10:14:26 PM GMT-4
- UTC
- 8/20/2026, 2:14:26 AM UTC
-163.9 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby major cities
Nearby event sequence · 12
M3.6Offshore Antofagasta, ChileBeforeM4.3105 km SW of Atocha, BoliviaBeforeM4.1Oruro, BoliviaBeforeM3.9Antofagasta, ChileBeforeM3.4Oruro, BoliviaBeforeM3.6Potosi, BoliviaBeforeM3.4Offshore Tarapaca, ChileBeforeM4.636 km WNW of Ollagüe, ChileBeforeM3.6Salta, ArgentinaBeforeM3.4Antofagasta, ChileBeforeM3.6Antofagasta, ChileBeforeM4.781 km W of San Antonio de los Cobres, ArgentinaAfter
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: Aug 20, 2026, 05:52 AM 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.