2.8
Earthquake Details: 52 km from Chilecito, La Rioja, Argentina
8/18/2026, 11:16:34 PM
A magnitude 2.8 earthquake occurred near 52 km from Chilecito, La Rioja, Argentina on 8/18/2026 at 11:16:34 PM. The seismic event was recorded at a depth of -123 km. No tsunami warning was issued.
No Tsunami WarningStatus: reviewedType: earthquake
Regional Seismicity
Technical Details
Depth-123 km
Significance0
Latitude-28.7200
Longitude-67.3300
Event IDemsc:20260818_0000820
Magnitude2.8
Updated:8/18/2026, 11:22:29 PM
External Resources
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Time & depth
- Local time
- 8/18/2026, 8:16:34 PM GMT-3
- UTC
- 8/18/2026, 11:16:34 PM UTC
-123 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby major cities
Nearby event sequence · 12
M3.0San Juan, ArgentinaBeforeM3.5San Juan, ArgentinaBeforeM4.499 km W of San Antonio de los Cobres, ArgentinaBeforeM4.1San Juan, ArgentinaBeforeM2.9Mendoza, ArgentinaBeforeM3.6Offshore Antofagasta, ChileBeforeM3.4Salta, ArgentinaBeforeM3.3Coquimbo, ChileBeforeM3.0Salta, ArgentinaBeforeM3.6Salta, ArgentinaAfterM3.0San Juan, ArgentinaAfterM2.9San Juan, 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 18, 2026, 11:22 PM 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.