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Chile

M3.5 Earthquake near OFFSHORE BIO-BIO, CHILE (Chile)

UTC time: 2025-12-18 10:02:03 UTC Local time: —

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About this earthquake

On December 18, 2025 at 10:02 UTC, a magnitude M3.5 earthquake occurred near OFFSHORE BIO-BIO, CHILE (Chile). The hypocenter lay relatively close to the surface at around 25 km, increasing how strongly it was felt. Shaking of this size is frequently noticed but usually harmless.

The event was recorded by EMSC. Chile: over the past 24 hours, QuakeMap24 logged 31 earthquakes, the strongest at M4.7.

Details

ID
cea777aa3c30c38ec50ba5327acf984dceb3a315
Magnitude
M3.5
Depth
25.4 km
UTC time
2025-12-18 10:02:03 UTC
Local time
—
Country
Chile
Source
emsc
Coordinates
-36.66000, -73.18000
Temperature
15.2°C

Depth profile

Depth profile Depth: 25.4 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 25.4 km
Shallow
25.4 km
25.4 km — shallower than the regional average (99.3 km)
Regional average: 99.3 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

Felt reports

7felt reports at EMSC / LastQuake

Voluntary reports of feeling this earthquake. The count is not an intensity measurement and is not added to USGS DYFI reports.

Data updated: Dec 19, 2025, 3:09 AM UTC · Last checked: Sep 6, 2026, 12:18 PM UTC

Source: EMSC / LastQuake

Volcanoes nearby

  • Chillan, Nevados de
    Distance: 162 km ·Stratovolcano ·Elevation: 3'180 m ·Last eruption: 2022 ·Chile
  • Antuco
    Distance: 182 km ·Stratovolcano ·Elevation: 2'979 m ·Last eruption: 1869 ·Chile
  • Longavi, Nevado de
    Distance: 188 km ·Stratovolcano ·Elevation: 3'175 m ·Last eruption: -4890 ·Chile
  • Blancas, Lomas
    Distance: 199 km ·Stratovolcano ·Elevation: 2'268 m ·Chile
  • Resago, Volcan
    Distance: 205 km ·Pyroclastic cone ·Elevation: 1'890 m ·Chile
  • Callaqui
    Distance: 208 km ·Stratovolcano ·Elevation: 3'099 m ·Last eruption: 1980 ·Chile

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Carriel Sur International AirportChile · CCP · SCIE
    16.3 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-09-08

This selection shows geographic proximity, not a hazard zone or confirmed impacts. Distances use recorded site coordinates. Sources & data dates

Chile

Context for this earthquake

09 Sep 2025 – 09 Sep 2026 · M ≥ 3.0 · 2,738 Catalogue entries

Of 2,737 other entries for this area and period, 876 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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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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