M4.3 Earthquake 79 km ENE of Mutsu, Japan — October 16, 2022
2022-10-16 18:45:45 UTC (2022-10-16) · approx. 3:45 AM UTC+9 local
On October 16, 2022 at 18:45 UTC, a magnitude 4.3 shallow crustal earthquake struck 79 km ENE of Mutsu, Japan, at a depth of 63.5 km and coordinates 41.5143°, 142.1205°.
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
142.1205°E
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Common Questions
How strong was the magnitude 4.3 earthquake near Mutsu, Japan?
The magnitude 4.3 earthquake that struck 79 km ENE of Mutsu, Japan on October 16, 2022 at 18:45 UTC had a depth of 63.5 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: us6000iu5m). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, October 16, 2022). M4.3 Earthquake 79 km ENE of Mutsu, Japan — October 16, 2022. Retrieved December 31, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000iu5m/