M4.3 Earthquake 139 km NNW of Nago, Japan — January 15, 2022
2022-01-15 18:49:19 UTC (2022-01-15) · approx. 2:49 AM UTC+8 local
On January 15, 2022 at 18:49 UTC, a magnitude 4.3 intermediate depth earthquake struck 139 km NNW of Nago, Japan, at a depth of 170.7 km and coordinates 27.7134°, 127.2958°.
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
127.2958°E
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Common Questions
How strong was the magnitude 4.3 earthquake near Nago, Japan?
The magnitude 4.3 earthquake that struck 139 km NNW of Nago, Japan on January 15, 2022 at 18:49 UTC had a depth of 170.7 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: us7000gewf). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, January 15, 2022). M4.3 Earthquake 139 km NNW of Nago, Japan — January 15, 2022. Retrieved April 1, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000gewf/