M4.3 Earthquake 102 km ESE of Shizunai-furukawach?, Japan — September 16, 2020
2020-09-16 22:41:30 UTC (2020-09-16) · approx. 8:41 AM UTC+10 local
On September 16, 2020 at 22:41 UTC, a magnitude 4.3 shallow crustal earthquake struck 102 km ESE of Shizunai-furukawach?, Japan, at a depth of 37.6 km and coordinates 41.8647°, 143.4283°.
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
143.4283°E
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How strong was the magnitude 4.3 earthquake near Shizunai-furukawach?, Japan?
The magnitude 4.3 earthquake that struck 102 km ESE of Shizunai-furukawach?, Japan on September 16, 2020 at 22:41 UTC had a depth of 37.6 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: us6000bzlp). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, September 16, 2020). M4.3 Earthquake 102 km ESE of Shizunai-furukawach?, Japan — September 16, 2020. Retrieved November 28, 2020 from https://www.earthquaketracker.org/earthquakes/event/us6000bzlp/