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Argentina

M3.5 Earthquake near Chile-Argentina Border Region (Argentina)

UTC time: 2025-10-21 08:51:36 UTC Local time: —

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About this earthquake

A magnitude M3.5 earthquake was recorded near Chile-Argentina Border Region (Argentina) on October 21, 2025 at 08:51 UTC. The earthquake originated at an intermediate depth of about 143 km. Shaking of this size is frequently noticed but usually harmless.

The data is provided by GFZ and cross-checked across seismological networks. Argentina: 11 earthquakes were recorded in the past 24 hours, the strongest reaching M4.4.

Details

ID
93f2e768c3c187b782bc32cd2ed0d0120183fbbc
Magnitude
M3.5
Depth
143.0 km
UTC time
2025-10-21 08:51:36 UTC
Local time
—
Country
Argentina
City
San Juan
Source
gfz
Coordinates
-31.71000, -70.07000
Temperature
-2.7°C

Depth profile

Depth profile Depth: 143 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 143 km
Intermediate
143 km
143 km — close to the regional average (140.5 km)
Regional average: 140.5 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

  • Tupungatito
    Distance: 192 km ·Stratovolcano ·Elevation: 5'660 m ·Last eruption: 1987 ·Chile-Argentina
  • San Jose
    Distance: 232 km ·Stratovolcano(es) ·Elevation: 6'070 m ·Last eruption: 1960 ·Chile-Argentina
  • Maipo
    Distance: 274 km ·Caldera ·Elevation: 5'323 m ·Last eruption: 1912 ·Chile-Argentina
  • Atuel, Caldera del
    Distance: 321 km ·Caldera ·Elevation: 5'189 m ·Argentina
  • Palomo
    Distance: 323 km ·Stratovolcano ·Elevation: 4'860 m ·Chile
  • Tinguiririca
    Distance: 346 km ·Stratovolcano ·Elevation: 4'280 m ·Last eruption: 1917 ·Chile

San Juan

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 3.0 · 413 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.

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