M4.8 Earthquake 1 km NE of Charneca de Caparica, Portugal — February 17, 2025
2025-02-17 13:24:04 UTC (2025-02-17) · approx. 12:24 PM UTC-1 local
Felt by 554 people across surrounding communities.
On February 17, 2025 at 13:24 UTC, a magnitude 4.8 shallow crustal earthquake struck 1 km NE of Charneca de Caparica, Portugal, at a depth of 10.0 km and coordinates 38.6301°, -9.1842°. This earthquake was detected by 63 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 676, making it a moderate-impact event.
Physical scale: An earthquake of magnitude 4.8 releases seismic energy equivalent to roughly 239 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.2 km — a useful intuition for the size of the slip patch on the fault.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 554 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
-9.1842°E
Technical Information
Common Questions
How strong was the magnitude 4.8 earthquake near Charneca de Caparica, Portugal?
The magnitude 4.8 earthquake that struck 1 km NE of Charneca de Caparica, Portugal on February 17, 2025 at 13:24 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 38.6301°, -9.1842°, which is 1 km NE of Charneca de Caparica, Portugal.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.8 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: us7000pe8k). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, February 17, 2025). M4.8 Earthquake 1 km NE of Charneca de Caparica, Portugal — February 17, 2025. Retrieved May 2, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000pe8k/