M4.0 Earthquake 180 km WNW of Kamiiso, Japan — January 15, 2022
2022-01-15 19:10:24 UTC (2022-01-15) · approx. 4:10 AM UTC+9 local
On January 15, 2022 at 19:10 UTC, a magnitude 4.0 intermediate depth earthquake struck 180 km WNW of Kamiiso, Japan, at a depth of 235.9 km and coordinates 42.2137°, 138.5268°.
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
138.5268°E
Technical Information
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Common Questions
How strong was the magnitude 4.0 earthquake near Kamiiso, Japan?
The magnitude 4.0 earthquake that struck 180 km WNW of Kamiiso, Japan on January 15, 2022 at 19:10 UTC had a depth of 235.9 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.
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Understanding This Data
Magnitude 4.0 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000gca3). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, January 15, 2022). M4.0 Earthquake 180 km WNW of Kamiiso, Japan — January 15, 2022. Retrieved April 1, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000gca3/