M4.5 Earthquake 100 km WNW of Ie, Japan — November 28, 2023
2023-11-28 17:34:04 UTC (2023-11-28) · approx. 1:34 AM UTC+8 local
On November 28, 2023 at 17:34 UTC, a magnitude 4.5 intermediate depth earthquake struck 100 km WNW of Ie, Japan, at a depth of 108.5 km and coordinates 26.8971°, 126.8152°. This earthquake was detected by 104 seismic stations with excellent 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 Japan, a region characterized by the intersection of four tectonic plates — Pacific, Philippine Sea, Eurasian, and North American — creating multiple subduction zones. The nearest mapped fault system is the Japan Trench. View all earthquakes in Japan.
Learn more: Magnitude scale · Aftershock sequences
Earthquake Details
126.8152°E
Technical Information
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Common Questions
How strong was the magnitude 4.5 earthquake near Ie, Japan?
The magnitude 4.5 earthquake that struck 100 km WNW of Ie, Japan on November 28, 2023 at 17:34 UTC had a depth of 108.5 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 26.8971°, 126.8152°, which is 100 km WNW of Ie, Japan. View all earthquakes in Japan.
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 Japan had earthquakes this big before?
The largest recorded earthquake in Japan was the M9.1 Tohoku earthquake of March 11, 2011. Today's magnitude 4.5 event is significantly smaller than that historical record.
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Location
Authoritative source: USGS event page (event ID: us7000lecc). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, November 28, 2023). M4.5 Earthquake 100 km WNW of Ie, Japan — November 28, 2023. Retrieved February 6, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000lecc/