M4.2 Earthquake 86 km SE of Ishinomaki, Japan — March 17, 2022
2022-03-17 19:56:52 UTC (2022-03-17) · approx. 4:56 AM UTC+9 local
On March 17, 2022 at 19:56 UTC, a magnitude 4.2 shallow crustal earthquake struck 86 km SE of Ishinomaki, Japan, at a depth of 50.9 km and coordinates 37.9753°, 142.1197°.
Physical scale: An earthquake of magnitude 4.2 releases seismic energy equivalent to roughly 30 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 476 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
142.1197°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.2 earthquake near Ishinomaki, Japan?
The magnitude 4.2 earthquake that struck 86 km SE of Ishinomaki, Japan on March 17, 2022 at 19:56 UTC had a depth of 50.9 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 4.2 earthquakes can continue for several days and gradually diminish over time.
Actions
Location
Understanding This Data
Magnitude 4.2 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000h6r4). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, March 17, 2022). M4.2 Earthquake 86 km SE of Ishinomaki, Japan — March 17, 2022. Retrieved May 27, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000h6r4/