M4.4 Earthquake 26 km WSW of Sarpol-e Z?ah?b, Iran — December 7, 2020
2020-12-07 22:24:49 UTC (2020-12-07) · approx. 1:24 AM UTC+3 local
On December 7, 2020 at 22:24 UTC, a magnitude 4.4 shallow crustal earthquake struck 26 km WSW of Sarpol-e Z?ah?b, Iran, at a depth of 9.2 km and coordinates 34.3346°, 45.6195°.
Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
45.6195°E
Technical Information
Common Questions
How strong was the magnitude 4.4 earthquake near Sarpol-e Z?ah?b, Iran?
The magnitude 4.4 earthquake that struck 26 km WSW of Sarpol-e Z?ah?b, Iran on December 7, 2020 at 22:24 UTC had a depth of 9.2 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 4.4 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.4 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000cpv8). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, December 7, 2020). M4.4 Earthquake 26 km WSW of Sarpol-e Z?ah?b, Iran — December 7, 2020. Retrieved February 12, 2021 from https://www.earthquaketracker.org/earthquakes/event/us7000cpv8/