M3.9 Earthquake 88 km SE of Ol’ga, Russia — January 29, 2023
2023-01-29 22:17:34 UTC (2023-01-29) · approx. 7:17 AM UTC+9 local
On January 29, 2023 at 22:17 UTC, a magnitude 3.9 deep-focus earthquake struck 88 km SE of Ol’ga, Russia, at a depth of 348.9 km and coordinates 43.2327°, 136.1235°.
Physical scale: An earthquake of magnitude 3.9 releases seismic energy equivalent to roughly 11 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 296 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
136.1235°E
Technical Information
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Common Questions
How strong was the magnitude 3.9 earthquake near Ol’ga, Russia?
The magnitude 3.9 earthquake that struck 88 km SE of Ol’ga, Russia on January 29, 2023 at 22:17 UTC had a depth of 348.9 km. For context, this was a minor earthquake typically detected only by instruments.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 3.9 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.9 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: us6000jk7l). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, January 29, 2023). M3.9 Earthquake 88 km SE of Ol’ga, Russia — January 29, 2023. Retrieved April 13, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000jk7l/