M4.4 Earthquake 124 km WNW of Naha, Japan — October 7, 2020
2020-10-07 19:56:13 UTC (2020-10-07) · approx. 3:56 AM UTC+8 local
On October 7, 2020 at 19:56 UTC, a magnitude 4.4 intermediate depth earthquake struck 124 km WNW of Naha, Japan, at a depth of 116.5 km and coordinates 26.5303°, 126.4818°.
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.
Earthquake Details
126.4818°E
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Common Questions
How strong was the magnitude 4.4 earthquake near Naha, Japan?
The magnitude 4.4 earthquake that struck 124 km WNW of Naha, Japan on October 7, 2020 at 19:56 UTC had a depth of 116.5 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 4.4 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: us6000c7t5). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, October 7, 2020). M4.4 Earthquake 124 km WNW of Naha, Japan — October 7, 2020. Retrieved December 19, 2020 from https://www.earthquaketracker.org/earthquakes/event/us6000c7t5/