M4.0 Earthquake 62 km NNW of Amazar, Russia — April 30, 2023
2023-04-30 19:50:25 UTC (2023-04-30) · approx. 3:50 AM UTC+8 local
On April 30, 2023 at 19:50 UTC, a magnitude 4.0 shallow crustal earthquake struck 62 km NNW of Amazar, Russia, at a depth of 10.0 km and coordinates 54.4029°, 120.6441°.
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
120.6441°E
Technical Information
Common Questions
How strong was the magnitude 4.0 earthquake near Amazar, Russia?
The magnitude 4.0 earthquake that struck 62 km NNW of Amazar, Russia on April 30, 2023 at 19:50 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.
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Understanding This Data
Magnitude 4.0 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000k9qi). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, April 30, 2023). M4.0 Earthquake 62 km NNW of Amazar, Russia — April 30, 2023. Retrieved July 15, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000k9qi/