M5.0 Earthquake 58 km ENE of Hirara, Japan — January 15, 2023
2023-01-15 11:37:34 UTC (2023-01-15) · approx. 7:37 PM UTC+8 local
On January 15, 2023 at 11:37 UTC, a magnitude 5.0 shallow crustal earthquake struck 58 km ENE of Hirara, Japan, at a depth of 20.2 km and coordinates 25.0491°, 125.8117°. This earthquake was detected by 67 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 385, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 5.0 releases seismic energy equivalent to roughly 477 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.7 km — 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
125.8117°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 5.0 earthquake near Hirara, Japan?
The magnitude 5.0 earthquake that struck 58 km ENE of Hirara, Japan on January 15, 2023 at 11:37 UTC had a depth of 20.2 km. For context, this was a moderate earthquake that could be widely felt.
Where did the earthquake occur?
The earthquake epicenter was located at 25.0491°, 125.8117°, which is 58 km ENE of Hirara, Japan. View all earthquakes in Japan.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.0 earthquakes can continue for days to weeks 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 5.0 event is significantly smaller than that historical record.
Actions
Location
Authoritative source: USGS event page (event ID: us7000j4if). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, January 15, 2023). M5.0 Earthquake 58 km ENE of Hirara, Japan — January 15, 2023. Retrieved March 31, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000j4if/