M4.4 Earthquake 85 km E of Ishinomaki, Japan — February 24, 2022
2022-02-24 23:46:40 UTC (2022-02-24) · approx. 8:46 AM UTC+9 local
On February 24, 2022 at 23:46 UTC, a magnitude 4.4 shallow crustal earthquake struck 85 km E of Ishinomaki, Japan, at a depth of 47.2 km and coordinates 38.4181°, 142.2758°.
Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
142.2758°E
Technical Information
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Common Questions
How strong was the magnitude 4.4 earthquake near Ishinomaki, Japan?
The magnitude 4.4 earthquake that struck 85 km E of Ishinomaki, Japan on February 24, 2022 at 23:46 UTC had a depth of 47.2 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 4.4 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.4 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000gzxm). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, February 24, 2022). M4.4 Earthquake 85 km E of Ishinomaki, Japan — February 24, 2022. Retrieved May 4, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000gzxm/