M4.9 Earthquake near Kuril Islands — July 3, 2025
2025-07-03 21:09:14 UTC (2025-07-03) · approx. 7:09 AM UTC+10 local
On July 3, 2025 at 21:09 UTC, a magnitude 4.9 intermediate depth earthquake struck near Kuril Islands, at a depth of 103.2 km and coordinates 46.6864°, 151.4532°. This earthquake was detected by 86 seismic stations with good location accuracy and was assigned a USGS significance rating of 369, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.9 releases seismic energy equivalent to roughly 338 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.4 km — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
151.4532°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.9 earthquake near Kuril Islands?
The magnitude 4.9 earthquake that struck near Kuril Islands on July 3, 2025 at 21:09 UTC had a depth of 103.2 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 46.6864°, 151.4532°, which is near Kuril Islands.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.9 earthquakes can continue for several days and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us7000qaj8). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, July 3, 2025). M4.9 Earthquake near Kuril Islands — July 3, 2025. Retrieved September 12, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000qaj8/