M5.1 Earthquake 30 km SSE of Povoação, Portugal — March 11, 2025
2025-03-11 08:14:36 UTC (2025-03-11) · approx. 6:14 AM UTC-2 local
Felt by 30 people across nearby locations.
On March 11, 2025 at 08:14 UTC, a magnitude 5.1 shallow crustal earthquake struck 30 km SSE of Povoação, Portugal, at a depth of 10.0 km and coordinates 37.4939°, -25.1323°. This earthquake was detected by 119 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 412, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 5.1 releases seismic energy equivalent to roughly 674 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 2.0 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 30 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
-25.1323°E
Technical Information
Common Questions
How strong was the magnitude 5.1 earthquake near Povoação, Portugal?
The magnitude 5.1 earthquake that struck 30 km SSE of Povoação, Portugal on March 11, 2025 at 08:14 UTC had a depth of 10.0 km. For context, this was a moderate earthquake that could be widely felt.
Where did the earthquake occur?
The earthquake epicenter was located at 37.4939°, -25.1323°, which is 30 km SSE of Povoação, Portugal.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.1 earthquakes can continue for days to weeks and gradually diminish over time.
Authoritative source: USGS event page (event ID: us6000py3k). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, March 11, 2025). M5.1 Earthquake 30 km SSE of Povoação, Portugal — March 11, 2025. Retrieved May 16, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000py3k/