M4.9 Earthquake near Kuril Islands — April 17, 2023
2023-04-17 23:26:05 UTC (2023-04-17) · approx. 9:26 AM UTC+10 local
Felt by 1 person across nearby locations.
On April 17, 2023 at 23:26 UTC, a magnitude 4.9 shallow crustal earthquake struck near Kuril Islands, at a depth of 35.0 km and coordinates 46.6024°, 152.7630°. This earthquake was detected by 112 seismic stations with good location accuracy and was assigned a USGS significance rating of 370, 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.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 1 citizen response to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
152.7630°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 April 17, 2023 at 23:26 UTC had a depth of 35.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 46.6024°, 152.7630°, 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: us6000k578). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, April 17, 2023). M4.9 Earthquake near Kuril Islands — April 17, 2023. Retrieved January 18, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000k578/