4.8

M4.8 Earthquake 180 km SSW of Lajes das Flores, PortugalOctober 5, 2024

2024-10-05 12:08:13 UTC (2024-10-05) · approx. 10:08 AM UTC-2 local

MagnitudeM4.8(mb)
Time12:08 UTC10:08 AM UTC-2
Depth10.0 kmshallow crustal
Coordinates37.794°, -31.636°
Felt byNo felt reports
Status✓ Reviewed by USGS

On October 5, 2024 at 12:08 UTC, a magnitude 4.8 shallow crustal earthquake struck 180 km SSW of Lajes das Flores, Portugal, at a depth of 10.0 km and coordinates 37.7942°, -31.6355°. This earthquake was detected by 60 seismic stations with good location accuracy and was assigned a USGS significance rating of 354, placing it among routine seismic activity.

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.

Map showing earthquake epicenter at 37.79°, -31.64°

Earthquake Details

Magnitude
4.8 mb
Depth
10.0 km
shallow crustal
Location
37.7942°N
-31.6355°E

Technical Information

Event ID
us6000nwpm
Event Type
earthquake
Status
✓ Reviewed
Significance
354
Stations Used
60
Azimuthal Gap
112.0°
Min Station Distance
4.841°
RMS Residual
0.71 sec
Last Updated
2024-12-14 14:50:36 UTC

Common Questions

How strong was the magnitude 4.8 earthquake near Lajes das Flores, Portugal?

The magnitude 4.8 earthquake that struck 180 km SSW of Lajes das Flores, Portugal on October 5, 2024 at 12:08 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 37.7942°, -31.6355°, which is 180 km SSW of Lajes das Flores, 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: us6000nwpm). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, October 5, 2024). M4.8 Earthquake 180 km SSW of Lajes das Flores, PortugalOctober 5, 2024. Retrieved December 14, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000nwpm/