M4.4 Earthquake 82 km SW of Yonakuni, Japan — January 21, 2024
2024-01-21 22:57:10 UTC (2024-01-21) · approx. 6:57 AM UTC+8 local
On January 21, 2024 at 22:57 UTC, a magnitude 4.4 shallow crustal earthquake struck 82 km SW of Yonakuni, Japan, at a depth of 10.0 km and coordinates 23.9308°, 122.4363°.
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.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 1 citizen response to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
122.4363°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.4 earthquake near Yonakuni, Japan?
The magnitude 4.4 earthquake that struck 82 km SW of Yonakuni, Japan on January 21, 2024 at 22:57 UTC had a depth of 10.0 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.
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Understanding This Data
Magnitude 4.4 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000m5be). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, January 21, 2024). M4.4 Earthquake 82 km SW of Yonakuni, Japan — January 21, 2024. Retrieved March 29, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000m5be/