M4.2 Earthquake 46 km NNW of Yigo Village, Guam — September 8, 2020
2020-09-08 19:25:52 UTC (2020-09-08) · approx. 5:25 AM UTC+10 local
On September 8, 2020 at 19:25 UTC, a magnitude 4.2 intermediate depth earthquake struck 46 km NNW of Yigo Village, Guam, at a depth of 120.2 km and coordinates 13.9453°, 144.7916°.
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
144.7916°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.2 earthquake near Yigo Village, Guam?
The magnitude 4.2 earthquake that struck 46 km NNW of Yigo Village, Guam on September 8, 2020 at 19:25 UTC had a depth of 120.2 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
Understanding This Data
Magnitude 4.2 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000blvx). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, September 8, 2020). M4.2 Earthquake 46 km NNW of Yigo Village, Guam — September 8, 2020. Retrieved November 17, 2020 from https://www.earthquaketracker.org/earthquakes/event/us7000blvx/