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Argentina · San Juan

M3.0 Earthquake near Las Hornillas, San Juan (Argentina)

UTC time: 2026-09-21 10:29:38 UTC Local time: —

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About this earthquake

A magnitude M3.0 earthquake was recorded near Las Hornillas, San Juan (Argentina) on September 21, 2026 at 10:29 UTC. The earthquake originated at an intermediate depth of about 107 km. Earthquakes of this magnitude are often felt but rarely cause damage.

The event was recorded by EMSC. Argentina: over the past 24 hours, QuakeMap24 logged 16 earthquakes, the strongest at M4.1.

Details

ID
fcf15fde3d5cc039e078bcc3004f70c56e8e07d9
Magnitude
M3.0
Depth
107.0 km
UTC time
2026-09-21 10:29:38 UTC
Local time
—
Country
Argentina
State
San Juan
City
Las Hornillas
County
Calingasta
Village
Las Hornillas
Source
emsc
Coordinates
-31.71000, -69.46000
Temperature
11.6°C

Depth profile

Depth profile Depth: 107 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 107 km
Intermediate
107 km
107 km — shallower than the regional average (142.2 km)
Regional average: 142.2 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: 193 km ·Stratovolcano ·Elevation: 5'660 m ·Last eruption: 1987 ·Chile-Argentina
  • San Jose
    Distance: 235 km ·Stratovolcano(es) ·Elevation: 6'070 m ·Last eruption: 1960 ·Chile-Argentina
  • Maipo
    Distance: 275 km ·Caldera ·Elevation: 5'323 m ·Last eruption: 1912 ·Chile-Argentina
  • Atuel, Caldera del
    Distance: 323 km ·Caldera ·Elevation: 5'189 m ·Argentina
  • Palomo
    Distance: 331 km ·Stratovolcano ·Elevation: 4'860 m ·Chile
  • Tinguiririca
    Distance: 355 km ·Stratovolcano ·Elevation: 4'280 m ·Last eruption: 1917 ·Chile

San Juan

Context for this earthquake

21 Sep 2025 – 21 Sep 2026 · M ≥ 3.0 · 403 Catalogue entries

Of 402 other entries for this area and period, 323 have a higher stored magnitude. Different magnitude types and reports not yet merged limit the comparison.

Open seismic profile

Historic earthquake map · Argentina

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