M4.4 Earthquake 77 km SE of Ishinomaki, Japan — March 20, 2022
2022-03-20 23:44:01 UTC (2022-03-20) · approx. 8:44 AM UTC+9 local
On March 20, 2022 at 23:44 UTC, a magnitude 4.4 shallow crustal earthquake struck 77 km SE of Ishinomaki, Japan, at a depth of 58.6 km and coordinates 37.8385°, 141.7930°.
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
141.7930°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.4 earthquake near Ishinomaki, Japan?
The magnitude 4.4 earthquake that struck 77 km SE of Ishinomaki, Japan on March 20, 2022 at 23:44 UTC had a depth of 58.6 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.
Actions
Location
Understanding This Data
Magnitude 4.4 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000h6a8). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, March 20, 2022). M4.4 Earthquake 77 km SE of Ishinomaki, Japan — March 20, 2022. Retrieved May 28, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000h6a8/