M4.0 Depth: 36.1 km

M4.0 Earthquake near 48 km SE of San Agustín de Valle Fértil, Argentina (Argentina)

UTC time: 2025-10-09 04:10:56 UTC Local time: —

About this earthquake

On October 9, 2025 at 04:10 UTC, a magnitude M4.0 earthquake occurred near 48 km SE of San Agustín de Valle Fértil, Argentina (Argentina). The hypocenter lay relatively close to the surface at around 36 km, increasing how strongly it was felt. Earthquakes of this magnitude are clearly felt; minor damage to vulnerable buildings is possible.

The data is provided by USGS and cross-checked across seismological networks. Argentina: 13 earthquakes were recorded in the past 24 hours, the strongest reaching M3.9.

Details

Magnitude

M4.0

Depth

36.1 km

UTC time

2025-10-09 04:10:56 UTC

Local time

—

Country

Argentina

City

La Rioja

Source

usgs

Coordinates

-30.90450, -67.07110

Temperature

17.7°C

Map

Depth profile

Shallow

36.1 km

36.1 km — shallower than the regional average (147 km)

Regional average: 147 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: 380 km ·Stratovolcano ·Elevation: 5'660 m ·Last eruption: 1987 ·Chile-Argentina
San Jose

Distance: 416 km ·Stratovolcano(es) ·Elevation: 6'070 m ·Last eruption: 1960 ·Chile-Argentina
Tipas

Distance: 437 km ·Complex ·Elevation: 6'658 m ·Argentina
Maipo

Distance: 445 km ·Caldera ·Elevation: 5'323 m ·Last eruption: 1912 ·Chile-Argentina
Ojos del Salado, Nevados

Distance: 446 km ·Stratovolcano ·Elevation: 6'879 m ·Last eruption: 750 ·Chile-Argentina
Incahuasi, Nevado de

Distance: 447 km ·Stratovolcano(es) ·Elevation: 6'638 m ·Chile-Argentina

Historic earthquake map · Argentina

Open history map

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)

698

Country (24h)