M4.3 Earthquake 180 km ENE of Petropavlovsk-Kamchatsky, Russia — September 15, 2021
2021-09-15 17:00:36 UTC (2021-09-15) · approx. 4:00 AM UTC+11 local
On September 15, 2021 at 17:00 UTC, a magnitude 4.3 shallow crustal earthquake struck 180 km ENE of Petropavlovsk-Kamchatsky, Russia, at a depth of 44.9 km and coordinates 53.8527°, 161.0018°.
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
161.0018°E
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Common Questions
How strong was the magnitude 4.3 earthquake near Petropavlovsk-Kamchatsky, Russia?
The magnitude 4.3 earthquake that struck 180 km ENE of Petropavlovsk-Kamchatsky, Russia on September 15, 2021 at 17:00 UTC had a depth of 44.9 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: us7000fd6r). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, September 15, 2021). M4.3 Earthquake 180 km ENE of Petropavlovsk-Kamchatsky, Russia — September 15, 2021. Retrieved November 23, 2021 from https://www.earthquaketracker.org/earthquakes/event/us7000fd6r/