M4.0 Earthquake 265 km SE of Shing?, Japan — December 12, 2022
2022-12-12 21:44:23 UTC (2022-12-12) · approx. 6:44 AM UTC+9 local
On December 12, 2022 at 21:44 UTC, a magnitude 4.0 deep-focus earthquake struck 265 km SE of Shing?, Japan, at a depth of 378.5 km and coordinates 31.9642°, 137.8890°.
Physical scale: An earthquake of magnitude 4.0 releases seismic energy equivalent to roughly 15 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 347 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
137.8890°E
Technical Information
Common Questions
How strong was the magnitude 4.0 earthquake near Shing?, Japan?
The magnitude 4.0 earthquake that struck 265 km SE of Shing?, Japan on December 12, 2022 at 21:44 UTC had a depth of 378.5 km. For context, this was a light earthquake commonly felt near the epicenter.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.0 earthquakes can continue for several days and gradually diminish over time.
Actions
Location
Understanding This Data
Magnitude 4.0 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000j9qv). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, December 12, 2022). M4.0 Earthquake 265 km SE of Shing?, Japan — December 12, 2022. Retrieved February 18, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000j9qv/