M4.0 Earthquake 16 km W of Mutsu, Japan — January 29, 2022
2022-01-29 23:31:06 UTC (2022-01-29) · approx. 8:31 AM UTC+9 local
On January 29, 2022 at 23:31 UTC, a magnitude 4.0 intermediate depth earthquake struck 16 km W of Mutsu, Japan, at a depth of 96.2 km and coordinates 41.3159°, 141.0224°.
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
141.0224°E
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Common Questions
How strong was the magnitude 4.0 earthquake near Mutsu, Japan?
The magnitude 4.0 earthquake that struck 16 km W of Mutsu, Japan on January 29, 2022 at 23:31 UTC had a depth of 96.2 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: us7000ghvr). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, January 29, 2022). M4.0 Earthquake 16 km W of Mutsu, Japan — January 29, 2022. Retrieved April 15, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000ghvr/