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Chile · Biobio Region

M4.2 Earthquake near Antuco, Biobio Region (Chile)

UTC time: 2026-09-24 23:19:34 UTC Local time: —
Earthquake newsQuakeMap24
Archive record · original publication time was not recorded

Automatically generated from measurement data by QuakeMap24. Values may change after further analysis.

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About this earthquake

On September 24, 2026 at 23:19 UTC, a magnitude M4.2 earthquake occurred near Antuco, Biobio Region (Chile). At around 174 km, the focal depth places this among intermediate-depth events. Tremors of this size are distinctly felt and can occasionally cause light damage.

The event was recorded by USGS. Chile: over the past 24 hours, QuakeMap24 logged 32 earthquakes, the strongest at M4.3.

Details

ID
ee8a3cb29c9cf02622ea69d52d6f5f7ff8f10594
Magnitude
M4.2
Depth
174.3 km
UTC time
2026-09-24 23:19:34 UTC
Local time
—
Country
Chile
State
Biobio Region
City
Antuco
County
Provincia de Bío-Bío
Source
usgs
Coordinates
-37.46210, -71.29300
Temperature
0.3°C

Depth profile

Depth profile Depth: 174.3 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 174.3 km
Intermediate
174.3 km
174.3 km — deeper than the regional average (99.6 km)
Regional average: 99.6 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

  • Antuco
    Distance: 8 km ·Stratovolcano ·Elevation: 2'979 m ·Last eruption: 1869 ·Chile
  • Copahue
    Distance: 45 km ·Stratovolcano ·Elevation: 2'953 m ·Last eruption: 2024 ·Chile-Argentina
  • Callaqui
    Distance: 53 km ·Stratovolcano ·Elevation: 3'099 m ·Last eruption: 1980 ·Chile
  • Chillan, Nevados de
    Distance: 66 km ·Stratovolcano ·Elevation: 3'180 m ·Last eruption: 2022 ·Chile
  • Tolhuaca
    Distance: 99 km ·Stratovolcano ·Elevation: 2'739 m ·Last eruption: -4000 ·Chile
  • Lonquimay
    Distance: 105 km ·Stratovolcano ·Elevation: 2'832 m ·Last eruption: 1990 ·Chile

Chile

Context for this earthquake

25 Sep 2025 – 25 Sep 2026 · M ≥ 3.0 · 2,753 Catalogue entries

Of 2,752 other entries for this area and period, 272 have a higher stored magnitude. Different magnitude types and reports not yet merged limit the comparison.

Open seismic profile

Historic earthquake map · Chile

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Country statistics · Chile

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

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