M4.6 Earthquake 58 km NNW of Dededo Village, Guam — January 25, 2021
2021-01-25 23:46:56 UTC (2021-01-25) · approx. 9:46 AM UTC+10 local
Felt by 1 person across nearby locations.
On January 25, 2021 at 23:46 UTC, a magnitude 4.6 intermediate depth earthquake struck 58 km NNW of Dededo Village, Guam, at a depth of 194.9 km and coordinates 14.0090°, 144.6319°.
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.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 1 citizen response to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
144.6319°E
Technical Information
Common Questions
How strong was the magnitude 4.6 earthquake near Dededo Village, Guam?
The magnitude 4.6 earthquake that struck 58 km NNW of Dededo Village, Guam on January 25, 2021 at 23:46 UTC had a depth of 194.9 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 14.0090°, 144.6319°, which is 58 km NNW of Dededo 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: us7000d3ag). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, January 25, 2021). M4.6 Earthquake 58 km NNW of Dededo Village, Guam — January 25, 2021. Retrieved April 13, 2021 from https://www.earthquaketracker.org/earthquakes/event/us7000d3ag/