M3.4
Depth:
19.1 km
M3.4 Earthquake near PORTUGAL (Portugal)
About this earthquake
On December 15, 2025 at 09:39 UTC, a magnitude M3.4 earthquake occurred near PORTUGAL (Portugal). With a focal depth of about 19 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Shaking of this size is frequently noticed but usually harmless.
The data is provided by EMSC and cross-checked across seismological networks.
Map
Depth profile
Shallow
19.1 km
19.1 km — deeper than the regional average (5.6 km)
Regional average: 5.6 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
-
Calatrava Volcanic Field
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Portugal
0
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