M4.3 Earthquake 91 km ESE of Ishinomaki, Japan — November 19, 2021
2021-11-19 20:07:00 UTC (2021-11-19) · approx. 5:07 AM UTC+9 local
On November 19, 2021 at 20:07 UTC, a magnitude 4.3 shallow crustal earthquake struck 91 km ESE of Ishinomaki, Japan, at a depth of 23.8 km and coordinates 38.2196°, 142.3149°.
Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
142.3149°E
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Common Questions
How strong was the magnitude 4.3 earthquake near Ishinomaki, Japan?
The magnitude 4.3 earthquake that struck 91 km ESE of Ishinomaki, Japan on November 19, 2021 at 20:07 UTC had a depth of 23.8 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 4.3 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.3 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000fwrp). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, November 19, 2021). M4.3 Earthquake 91 km ESE of Ishinomaki, Japan — November 19, 2021. Retrieved January 29, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000fwrp/