M4.5 Earthquake 94 km N of Shikotan, Russia — April 28, 2025
2025-04-28 13:56:36 UTC (2025-04-28) · approx. 11:56 PM UTC+10 local
On April 28, 2025 at 13:56 UTC, a magnitude 4.5 intermediate depth earthquake struck 94 km N of Shikotan, Russia, at a depth of 131.2 km and coordinates 44.6509°, 146.7382°. This earthquake was detected by 105 seismic stations with good location accuracy and was assigned a USGS significance rating of 312, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.5 releases seismic energy equivalent to roughly 85 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 767 m — a useful intuition for the size of the slip patch on the fault.
The epicenter is located in Russia, a region characterized by the Kuril-Kamchatka subduction zone on the northwestern Pacific Ring of Fire. The nearest mapped fault system is the Kuril-Kamchatka Trench. View all earthquakes in Russia.
Learn more: Magnitude scale · Aftershock sequences
Earthquake Details
146.7382°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.5 earthquake near Shikotan, Russia?
The magnitude 4.5 earthquake that struck 94 km N of Shikotan, Russia on April 28, 2025 at 13:56 UTC had a depth of 131.2 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 44.6509°, 146.7382°, which is 94 km N of Shikotan, Russia. View all earthquakes in Russia.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.5 earthquakes can continue for several days and gradually diminish over time.
Has Russia had earthquakes this big before?
The largest recorded earthquake in Russia was the M9.0 Kamchatka earthquake of November 4, 1952. Today's magnitude 4.5 event is significantly smaller than that historical record.
Authoritative source: USGS event page (event ID: us7000pvj9). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, April 28, 2025). M4.5 Earthquake 94 km N of Shikotan, Russia — April 28, 2025. Retrieved July 11, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000pvj9/