M4.6 Earthquake 46 km NNW of Yigo Village, Guam — August 22, 2021
2021-08-22 23:55:17 UTC (2021-08-22) · approx. 9:55 AM UTC+10 local
On August 22, 2021 at 23:55 UTC, a magnitude 4.6 intermediate depth earthquake struck 46 km NNW of Yigo Village, Guam, at a depth of 154.5 km and coordinates 13.9311°, 144.7316°.
Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 120 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 899 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
144.7316°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.6 earthquake near Yigo Village, Guam?
The magnitude 4.6 earthquake that struck 46 km NNW of Yigo Village, Guam on August 22, 2021 at 23:55 UTC had a depth of 154.5 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 13.9311°, 144.7316°, which is 46 km NNW of Yigo Village, Guam.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 earthquakes can continue for several days and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us7000f6ta). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, August 22, 2021). M4.6 Earthquake 46 km NNW of Yigo Village, Guam — August 22, 2021. Retrieved November 2, 2021 from https://www.earthquaketracker.org/earthquakes/event/us7000f6ta/