3.3
Earthquake Details: 70 km from La Rioja, La Rioja, Argentina
Sep 21, 2026, 17:38:02
A magnitude 3.3 earthquake occurred near 70 km from La Rioja, La Rioja, Argentina on Sep 21, 2026 at 17:38:02. The seismic event was recorded at a depth of -16 km. No tsunami warning was issued.
No Tsunami WarningStatus: ReviewedType: Earthquake
Regional Seismicity
Technical Details
Depth-16 km
Significance0
Latitude-30.0300
Longitude-66.6900
Event IDemsc:20260921_0000323
Magnitude3.3
Updated:Sep 21, 2026, 17:50:08 UTC
External Resources
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Time & depth
- Local time
- Sep 21, 2026, 14:38:02 GMT-3
- UTC
- Sep 21, 2026, 17:38:02 UTC
-16 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, ChileBeforeM4.7Salta, ArgentinaBeforeM5.364 km W of Cafayate, ArgentinaBeforeM4.0Atacama, ChileBeforeM3.5San Juan, ArgentinaBeforeM3.6San Juan, ArgentinaBeforeM3.6Salta, ArgentinaBeforeM3.8Catamarca, ArgentinaBeforeM3.6Catamarca, ArgentinaBeforeM4.1Salta, ArgentinaBeforeM4.233 km NNW of La Serena, 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 21, 2026, 17:50 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.