M5.1 Earthquake in the Azores Islands region — November 10, 2021
2021-11-10 11:02:11 UTC (2021-11-10) · approx. 9:02 AM UTC-2 local
Felt by 4 people across nearby locations.
On November 10, 2021 at 11:02 UTC, a magnitude 5.1 shallow crustal earthquake struck in the Azores Islands region, at a depth of 10.0 km and coordinates 36.8157°, -33.4139°.
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 4 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
-33.4139°E
Technical Information
Common Questions
How strong was the magnitude 5.1 earthquake in the Azores Islands region?
The magnitude 5.1 earthquake that struck in the Azores Islands region on November 10, 2021 at 11:02 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 36.8157°, -33.4139°, which is in the Azores Islands region.
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.
Actions
Authoritative source: USGS event page (event ID: us7000fsxw). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, November 10, 2021). M5.1 Earthquake in the Azores Islands region — November 10, 2021. Retrieved January 15, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000fsxw/