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Chile · Biobio Region

M3.4 Earthquake near Arauco, Biobio Region (Chile)

UTC time: 2026-07-29 09:32:51 UTC Local time: —

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About this earthquake

A magnitude M3.4 earthquake was recorded near Arauco, Biobio Region (Chile) on July 29, 2026 at 09:32 UTC. The hypocenter lay relatively close to the surface at around 46 km, increasing how strongly it was felt. Shaking of this size is frequently noticed but usually harmless.

The data is provided by EMSC and cross-checked across seismological networks. Chile: 30 earthquakes were recorded in the past 24 hours, the strongest reaching M4.0.

Details

ID
215ce57af0447e950e43f71b1d2145ca915780fc
Magnitude
M3.4
Depth
45.9 km
UTC time
2026-07-29 09:32:51 UTC
Local time
—
Country
Chile
State
Biobio Region
City
Arauco
County
Provincia de Arauco
Source
emsc
Coordinates
-37.35000, -73.63000
Temperature
4.2°C

Depth profile

Depth profile Depth: 45.9 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 45.9 km
Shallow
45.9 km
45.9 km — shallower than the regional average (99.8 km)
Regional average: 99.8 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

  • Antuco
    Distance: 202 km ·Stratovolcano ·Elevation: 2'979 m ·Last eruption: 1869 ·Chile
  • Callaqui
    Distance: 203 km ·Stratovolcano ·Elevation: 3'099 m ·Last eruption: 1980 ·Chile
  • Tolhuaca
    Distance: 204 km ·Stratovolcano ·Elevation: 2'739 m ·Last eruption: -4000 ·Chile
  • Chillan, Nevados de
    Distance: 207 km ·Stratovolcano ·Elevation: 3'180 m ·Last eruption: 2022 ·Chile
  • Lonquimay
    Distance: 213 km ·Stratovolcano ·Elevation: 2'832 m ·Last eruption: 1990 ·Chile
  • Copahue
    Distance: 223 km ·Stratovolcano ·Elevation: 2'953 m ·Last eruption: 2024 ·Chile-Argentina

Chile

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 3.0 · 2,749 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 · Chile

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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 · Chile

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

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