M4.2 Earthquake 67 km S of Kushiro, Japan — July 13, 2020
2020-07-13 23:00:25 UTC (2020-07-13) · approx. 9:00 AM UTC+10 local
On July 13, 2020 at 23:00 UTC, a magnitude 4.2 shallow crustal earthquake struck 67 km S of Kushiro, Japan, at a depth of 35.0 km and coordinates 42.3793°, 144.2295°.
Physical scale: An earthquake of magnitude 4.2 releases seismic energy equivalent to roughly 30 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 476 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
144.2295°E
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Common Questions
How strong was the magnitude 4.2 earthquake near Kushiro, Japan?
The magnitude 4.2 earthquake that struck 67 km S of Kushiro, Japan on July 13, 2020 at 23:00 UTC had a depth of 35.0 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 4.2 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.2 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000arps). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, July 13, 2020). M4.2 Earthquake 67 km S of Kushiro, Japan — July 13, 2020. Retrieved September 19, 2020 from https://www.earthquaketracker.org/earthquakes/event/us7000arps/