M4.0 Earthquake 9 km E of Düzce, Turkey — July 20, 2022
2022-07-20 19:49:41 UTC (2022-07-20) · approx. 9:49 PM UTC+2 local
On July 20, 2022 at 19:49 UTC, a magnitude 4.0 shallow crustal earthquake struck 9 km E of Düzce, Turkey, at a depth of 10.0 km and coordinates 40.8374°, 31.2823°.
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.
Earthquake Details
31.2823°E
Technical Information
Common Questions
How strong was the magnitude 4.0 earthquake near Düzce, Turkey?
The magnitude 4.0 earthquake that struck 9 km E of Düzce, Turkey on July 20, 2022 at 19:49 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.
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.
Actions
Understanding This Data
Magnitude 4.0 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000hs6v). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, July 20, 2022). M4.0 Earthquake 9 km E of Düzce, Turkey — July 20, 2022. Retrieved September 27, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000hs6v/