Magnitude
M3.9
- Depth
- 109.0 km
- Source
- EMSC
La Rioja · Departamento Vinchina
Country overviewArgentina · La Rioja
M3.9 Earthquake near Departamento Vinchina, La Rioja (Argentina)
Map
About this earthquake
A magnitude M3.9 earthquake was recorded near Departamento Vinchina, La Rioja (Argentina) on September 17, 2026 at 23:28 UTC. At around 109 km, the focal depth places this among intermediate-depth events. Shaking of this size is frequently noticed but usually harmless.
The data is provided by EMSC and cross-checked across seismological networks. Argentina: 15 earthquakes were recorded in the past 24 hours, the strongest reaching M4.2.
Details
ID
a030982408decfc26960bedca6624f4eb4d955a9
Magnitude
M3.9
Depth
109.0 km
UTC time
2026-09-17 23:28:47 UTC
Local time
—
Country
State
County
Source
emsc
Coordinates
-28.76000,
-68.11000
Temperature
11.9°C
Depth profile
Intermediate
109 km
109 km — shallower than the regional average (142.4 km)
Regional average: 142.4 km
Why depth matters
Intermediate-depth quakes are felt across a wider area but usually cause less surface damage.
Depth classes per USGS
Volcanoes nearby
La Rioja
Context for this earthquake
18 Sep 2025 – 18 Sep 2026 · M ≥ 3.0 · 80 Catalogue entries
Of 79 other entries for this area and period, 12 have a higher stored magnitude. Different magnitude types and reports not yet merged limit the comparison.
Open seismic profileHistoric earthquake map · Argentina
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Country statistics · Argentina
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Stats (last 24h)
Global (24h)
578
Country (24h)
Argentina
15
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