M4.3 Earthquake 51 km ENE of Nemuro, Japan — June 23, 2021
2021-06-23 18:44:20 UTC (2021-06-23) · approx. 4:44 AM UTC+10 local
On June 23, 2021 at 18:44 UTC, a magnitude 4.3 intermediate depth earthquake struck 51 km ENE of Nemuro, Japan, at a depth of 113.9 km and coordinates 43.5341°, 146.1470°.
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
146.1470°E
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Common Questions
How strong was the magnitude 4.3 earthquake near Nemuro, Japan?
The magnitude 4.3 earthquake that struck 51 km ENE of Nemuro, Japan on June 23, 2021 at 18:44 UTC had a depth of 113.9 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: us6000eqjt). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, June 23, 2021). M4.3 Earthquake 51 km ENE of Nemuro, Japan — June 23, 2021. Retrieved August 27, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000eqjt/