3.9
Earthquake Details: Offshore O'Higgins, Chile
Oct 28, 2026, 18:32:52
- Depth
- 21.7 km
- Felt reports
- No data
Source: EMSCUpdated: Oct 28, 2026, 06:46 PM UTC
A magnitude 3.9 earthquake occurred on Oct 28, 2026 at 18:32:52. Epicenter: Offshore O'Higgins, Chile. Reported depth: 21.7 km.
Tsunami information
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Time & depth
- Local time
- Oct 28, 2026, 13:32:52 GMT-5
- UTC
- Oct 28, 2026, 18:32:52 UTC
21.7 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
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Nearby major cities
Nearby earthquakes · 12
M4.250 km W of Valparaiso, ChileBeforeM3.6off the coast of Bio-Bio, ChileBeforeM4.49 km ESE of Caucete, ArgentinaBeforeM3.8Offshore Coquimbo, ChileBeforeM4.4Offshore Coquimbo, ChileBeforeM4.620 km NNW of La Ligua, ChileBeforeM3.6Offshore Coquimbo, ChileBeforeM4.551 km S of Calingasta, ArgentinaBeforeM3.6Valparaiso, ChileBeforeM4.325 km SSE of Calingasta, ArgentinaBeforeM4.329 km SSW of Melipilla, ChileBeforeM4.0Offshore Coquimbo, ChileBefore
Agency measurements
Agencies may use different observations and magnitude scales, and initial estimates can change.
- EMSCM 3.9
emsc:20261028_0000278
- Depth:
- 21.7 km
- Time:
- Updated:
- Oct 28, 2026, 06:46 PM UTC
Technical Details
Depth21.7 km
SignificanceNo data
Latitude-33.9000
Longitude-72.5200
Event IDemsc:20261028_0000278
Magnitude3.9
Updated:Oct 28, 2026, 18:46:34 UTC
Regional Seismicity
External Resources
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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 28, 2026, 18:46 UTC.
Data sources:
- USGS — Credit: U.S. Geological Survey.
- EMSC — Credit: EMSC/CSEM. Event catalogue data are provided under 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.
- GeoNet — We acknowledge the New Zealand GeoNet programme and its sponsors NHC, Earth Sciences NZ, LINZ, NEMA and MBIE for providing earthquake data.
- CENC / Wolfx — CENC earthquake parameters via Wolfx, an independent unofficial relay.
- GFZ / GEOFON — Locations, depths and magnitudes: GFZ/GEOFON using GEVN network data (CC BY 4.0).