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Argentina · San Luis

M3.1 Earthquake near Ayacucho, San Luis (Argentina)

UTC time: 2026-10-17 08:18:53 UTC Local time: —

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About this earthquake

On October 17, 2026 at 08:18 UTC, a magnitude M3.1 earthquake occurred near Ayacucho, San Luis (Argentina). The hypocenter lay relatively close to the surface at around 17 km, increasing how strongly it was felt. Earthquakes of this magnitude are often felt but rarely cause damage.

The event was recorded by INPRES. Argentina: 20 earthquakes were recorded in the past 24 hours, the strongest reaching M3.8.

Details

ID
dc87be54440c344a6c7c2db1ef99d38b50f906f2
Magnitude
M3.1
Depth
17.0 km
UTC time
2026-10-17 08:18:53 UTC
Local time
—
Country
Argentina
State
San Luis
City
Ayacucho
County
Ayacucho
Source
inpres
Coordinates
-31.96500, -67.37800
Temperature
20.5°C

Depth profile

Depth profile Depth: 17 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 17 km
Shallow
17 km
17 km — shallower than the regional average (133.8 km)
Regional average: 133.8 km
Why depth matters

Shallow quakes release energy near the surface — shaking is felt more strongly and damage potential is higher.

Depth classes per USGS

Volcanoes nearby

  • Tupungatito
    Distance: 279 km ·Stratovolcano ·Elevation: 5'660 m ·Last eruption: 1987 ·Chile-Argentina
  • San Jose
    Distance: 310 km ·Stratovolcano(es) ·Elevation: 6'070 m ·Last eruption: 1960 ·Chile-Argentina
  • Maipo
    Distance: 335 km ·Caldera ·Elevation: 5'323 m ·Last eruption: 1912 ·Chile-Argentina
  • Atuel, Caldera del
    Distance: 376 km ·Caldera ·Elevation: 5'189 m ·Argentina
  • Palomo
    Distance: 400 km ·Stratovolcano ·Elevation: 4'860 m ·Chile
  • Risco Plateado
    Distance: 407 km ·Stratovolcano ·Elevation: 4'999 m ·Argentina

Argentina

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 3.0 · 1,471 Catalogue entries

Sufficiently reliable matching data are not currently available for a direct comparison. The area profile shows the available records and their limitations.

Open seismic profile

Historic earthquake map · Argentina

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Explore recent and long-term earthquake activity in this country. Use filters to narrow down by magnitude, depth, and date range.

Country statistics · Argentina

Country overview
View earthquake KPIs, strongest and latest events, and averages for this country.

Stats (last 24h)

Global (24h)
726
Country (24h)
Argentina
20
Current earthquakes in
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