Magnitude
M3.3
- Depth
- 38.0 km
- Source
- EMSC
Región del Biobío
Country overviewChile
M3.3 Earthquake near BIO-BIO, CHILE (Chile)
Map
About this earthquake
On October 18, 2025 at 02:49 UTC, a magnitude M3.3 earthquake occurred near BIO-BIO, CHILE (Chile). The hypocenter lay relatively close to the surface at around 38 km, increasing how strongly it was felt. Shaking of this size is frequently noticed but usually harmless.
The event was recorded by EMSC. Chile: 26 earthquakes were recorded in the past 24 hours, the strongest reaching M4.2.
Details
ID
18000a81848c49b42f60b90a488e24a8a32e72a3
Magnitude
M3.3
Depth
38.0 km
UTC time
2025-10-18 02:49:36 UTC
Local time
—
Country
City
Source
emsc
Coordinates
-37.55000,
-72.23000
Temperature
9.1°C
Depth profile
Shallow
38 km
38 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
Volcanoes nearby
Chile
Context for this earthquake
10 Sep 2025 – 09 Sep 2026 · M ≥ 3.0 · 2,745 Catalogue entries
Of 2,744 other entries for this area and period, 1,284 have a higher stored magnitude. Different magnitude types and reports not yet merged limit the comparison.
Open seismic profileHistoric earthquake map · Chile
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Country statistics · Chile
View earthquake KPIs, strongest and latest events, and averages for this country.
Stats (last 24h)
Global (24h)
629
Country (24h)
Chile
26
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