M5.1 Earthquake 23 km SE of Derbent, Turkey — November 8, 2021
2021-11-08 17:43:21 UTC (2021-11-08) · approx. 7:43 PM UTC+2 local
Felt by 24 people across nearby locations.
On November 8, 2021 at 17:43 UTC, a magnitude 5.1 shallow crustal earthquake struck 23 km SE of Derbent, Turkey, at a depth of 10.0 km and coordinates 37.8434°, 32.1713°.
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.
The epicenter is located in Turkey, a region characterized by the North Anatolian Fault, a 1,500 km transform boundary driven by the westward extrusion of the Anatolian microplate. The nearest mapped fault system is the North Anatolian Fault. View all earthquakes in Turkey.
Learn more: Magnitude scale · Aftershock sequences
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 24 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
32.1713°E
Technical Information
Common Questions
How strong was the magnitude 5.1 earthquake near Derbent, Turkey?
The magnitude 5.1 earthquake that struck 23 km SE of Derbent, Turkey on November 8, 2021 at 17:43 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 37.8434°, 32.1713°, which is 23 km SE of Derbent, Turkey. View all earthquakes in Turkey.
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.
Has Turkey had earthquakes this big before?
The largest recorded earthquake in Turkey was the M7.8 Kahramanmaraş earthquake of February 6, 2023. Today's magnitude 5.1 event is significantly smaller than that historical record.
Authoritative source: USGS event page (event ID: us7000fsfm). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, November 8, 2021). M5.1 Earthquake 23 km SE of Derbent, Turkey — November 8, 2021. Retrieved December 22, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000fsfm/