M4.2 Earthquake 18 km ESE of Rumoi, Japan — November 19, 2020
2020-11-19 17:21:09 UTC (2020-11-19) · approx. 2:21 AM UTC+9 local
On November 19, 2020 at 17:21 UTC, a magnitude 4.2 intermediate depth earthquake struck 18 km ESE of Rumoi, Japan, at a depth of 204.5 km and coordinates 43.8912°, 141.8646°.
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
141.8646°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.2 earthquake near Rumoi, Japan?
The magnitude 4.2 earthquake that struck 18 km ESE of Rumoi, Japan on November 19, 2020 at 17:21 UTC had a depth of 204.5 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 4.2 earthquakes can continue for several days and gradually diminish over time.
Actions
Location
Understanding This Data
Magnitude 4.2 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000cqg2). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, November 19, 2020). M4.2 Earthquake 18 km ESE of Rumoi, Japan — November 19, 2020. Retrieved February 3, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000cqg2/