M5.6 Earthquake northwest of the Kuril Islands — June 17, 2023
2023-06-17 11:36:00 UTC (2023-06-17) · approx. 9:36 PM UTC+10 local
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On June 17, 2023 at 11:36 UTC, a magnitude 5.6 deep-focus earthquake struck northwest of the Kuril Islands, at a depth of 417.1 km and coordinates 47.9724°, 147.3699°. The USGS PAGER system issued a green alert level for this event, indicating no significant casualties or damage expected. This earthquake was detected by 159 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 482, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 5.6 releases seismic energy equivalent to roughly 4 kilotons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 4.4 km — a useful intuition for the size of the slip patch on the fault.
ShakeMap — predicted shaking intensity
Modeled ground-motion intensity contoured on the Modified Mercalli scale (MMI). Computed by the USGS from the moment-tensor solution and regional ground-motion prediction equations.
Source: U.S. Geological Survey ShakeMap. View interactive ShakeMap on USGS
Earthquake Details
147.3699°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 5.6 earthquake northwest of the Kuril Islands?
The magnitude 5.6 earthquake that struck northwest of the Kuril Islands on June 17, 2023 at 11:36 UTC had a depth of 417.1 km. For context, this was a moderate earthquake that could be widely felt.
Where did the earthquake occur?
The earthquake epicenter was located at 47.9724°, 147.3699°, which is northwest of the Kuril Islands.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.6 earthquakes can continue for days to weeks and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us7000k96n). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, June 17, 2023). M5.6 Earthquake northwest of the Kuril Islands — June 17, 2023. Retrieved August 21, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000k96n/