M4.0 Earthquake 22 km SSW of Hafik, Turkey — February 22, 2021
2021-02-22 22:42:32 UTC (2021-02-22) · approx. 12:42 AM UTC+2 local
Felt by 42 people across nearby locations.
On February 22, 2021 at 22:42 UTC, a magnitude 4.0 shallow crustal earthquake struck 22 km SSW of Hafik, Turkey, at a depth of 10.0 km and coordinates 39.6591°, 37.3333°.
Physical scale: An earthquake of magnitude 4.0 releases seismic energy equivalent to roughly 15 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 347 m — 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 42 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
37.3333°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.0 earthquake near Hafik, Turkey?
The magnitude 4.0 earthquake that struck 22 km SSW of Hafik, Turkey on February 22, 2021 at 22:42 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 39.6591°, 37.3333°, which is 22 km SSW of Hafik, Turkey. View all earthquakes in Turkey.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.0 earthquakes can continue for several days 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 4.0 event is significantly smaller than that historical record.
Authoritative source: USGS event page (event ID: us6000dk92). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, February 22, 2021). M4.0 Earthquake 22 km SSW of Hafik, Turkey — February 22, 2021. Retrieved May 4, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000dk92/