M4.3 Earthquake 291 km SE of Ust’-Kamchatsk Staryy, Russia — September 28, 2020
2020-09-28 17:58:24 UTC (2020-09-28) · approx. 4:58 AM UTC+11 local
On September 28, 2020 at 17:58 UTC, a magnitude 4.3 shallow crustal earthquake struck 291 km SE of Ust’-Kamchatsk Staryy, Russia, at a depth of 10.0 km and coordinates 54.3500°, 165.6807°.
Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
165.6807°E
Technical Information
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Common Questions
How strong was the magnitude 4.3 earthquake near Ust’-Kamchatsk Staryy, Russia?
The magnitude 4.3 earthquake that struck 291 km SE of Ust’-Kamchatsk Staryy, Russia on September 28, 2020 at 17:58 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 4.3 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.3 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000c4qu). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, September 28, 2020). M4.3 Earthquake 291 km SE of Ust’-Kamchatsk Staryy, Russia — September 28, 2020. Retrieved December 5, 2020 from https://www.earthquaketracker.org/earthquakes/event/us6000c4qu/