According to USGS, a magnitude 5.3 earthquake struck near Chilecito, Argentina on September 23, 2026. It was recorded at 06:21 AM GMT-3 at a depth of 121 km.
Magnitude and location may later be revised by USGS.
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Magnitude
M5.3
mww · Moderate
Depth
121 km
Intermediate
Time (UTC)
09:21:14 AM
September 23, 2026
Local time
06:21 AM
September 23, 2026 · GMT-3
The epicenter was about 84 km from La Rioja.
Since this earthquake, 1 earthquake have been recorded within 50 km of the epicenter; the largest was M4.4.
| Time (UTC) | Magnitude | Depth | Location | Distance | Record |
|---|---|---|---|---|---|
| M4.4 | 128 km | Chilecito, Argentina · 38 km NE | 14 km | USGS |
From 1990 until this earthquake, 115 earthquakes of magnitude 4.5 or greater were recorded within 100 km of the epicenter. The largest was an M6.0 earthquake on May 28, 2002.
Source: USGS earthquake catalogue (ComCat).
The earthquake occurred near Chilecito, Argentina at 28.770° S, 67.302° W, at a depth of 121 km. The nearest town was La Rioja, about 84 km away.
USGS reported a magnitude of mww 5.3 (moderate). How strongly it was felt, and any damage, also depend on depth, distance from the epicenter and local ground conditions.
Since this earthquake, 1 earthquake have been recorded within 50 km of the epicenter; the largest was M4.4.
Earthquake data: USGS (public domain); Turkey: AFAD; Europe: EMSC-CSEM SeismicPortal (CC BY 4.0); Japan: JMA; New Zealand: GeoNet (CC BY 3.0 NZ); Australia: Geoscience Australia (CC BY 4.0); Canada: NRCan (OGL-Canada); USGS backup: GFZ GEOFON (CC BY 4.0). Map: © OpenMapTiles © OpenStreetMap contributors. Borders: Natural Earth.