M4.9 Earthquake 290 km NE of Fais, Micronesia — August 1, 2021
2021-08-01 20:32:57 UTC (2021-08-01) · approx. 5:32 AM UTC+9 local
On August 1, 2021 at 20:32 UTC, a magnitude 4.9 shallow crustal earthquake struck 290 km NE of Fais, Micronesia, at a depth of 10.0 km and coordinates 11.5661°, 142.4589°.
Physical scale: An earthquake of magnitude 4.9 releases seismic energy equivalent to roughly 338 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.4 km — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
142.4589°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.9 earthquake near Fais, Micronesia?
The magnitude 4.9 earthquake that struck 290 km NE of Fais, Micronesia on August 1, 2021 at 20:32 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 11.5661°, 142.4589°, which is 290 km NE of Fais, Micronesia.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.9 earthquakes can continue for several days and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us6000f1bd). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, August 1, 2021). M4.9 Earthquake 290 km NE of Fais, Micronesia — August 1, 2021. Retrieved October 14, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000f1bd/