4.3
Earthquake Details: 25 km SSE of Calingasta, Argentina
Oct 27, 2026, 23:23:57
- Depth
- 120.23 km
- Felt reports
- No data
Source: USGSUpdated: Oct 28, 2026, 12:34 AM UTC
A magnitude 4.3 earthquake occurred on Oct 27, 2026 at 23:23:57. Epicenter: 25 km SSE of Calingasta, Argentina. Reported depth: 120.23 km.
Tsunami information
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Time & depth
- Local time
- Oct 27, 2026, 20:23:57 GMT-3
- UTC
- Oct 27, 2026, 23:23:57 UTC
120.23 km · Intermediate-focus
Between 70 and 300 km deep.
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Nearby major cities
Nearby earthquakes · 12
M4.1Atacama, ChileBeforeM4.250 km W of Valparaiso, ChileBeforeM4.49 km ESE of Caucete, ArgentinaBeforeM3.8Offshore Coquimbo, ChileBeforeM4.4Offshore Coquimbo, ChileBeforeM4.620 km NNW of La Ligua, ChileBeforeM4.551 km S of Calingasta, ArgentinaBeforeM4.739 km SSW of Serrezuela, ArgentinaAfterM3.9Atacama, ChileAfterM4.329 km SSW of Melipilla, ChileAfterM4.0Offshore Coquimbo, ChileAfterM3.9Offshore O'Higgins, ChileAfter
Agency measurements
Agencies may use different observations and magnitude scales, and initial estimates can change.
- USGSM 4.3
us7000ttkf
- Depth:
- 120.23 km
- Time:
- Updated:
- Oct 28, 2026, 12:34 AM UTC
Technical Details
Depth120.23 km
Significance284
Latitude-31.5423
Longitude-69.3138
Event IDus7000ttkf
Magnitude4.3
Updated:Oct 28, 2026, 00:34:47 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, 00:34 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).