M4.9 Earthquake 105 km S of Colonia, Micronesia — February 26, 2021
2021-02-26 08:38:52 UTC (2021-02-26) · approx. 5:38 PM UTC+9 local
On February 26, 2021 at 08:38 UTC, a magnitude 4.9 shallow crustal earthquake struck 105 km S of Colonia, Micronesia, at a depth of 10.0 km and coordinates 8.5676°, 138.0691°.
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
138.0691°E
Technical Information
Common Questions
How strong was the magnitude 4.9 earthquake near Colonia, Micronesia?
The magnitude 4.9 earthquake that struck 105 km S of Colonia, Micronesia on February 26, 2021 at 08:38 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 8.5676°, 138.0691°, which is 105 km S of Colonia, 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: us7000ddup). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, February 26, 2021). M4.9 Earthquake 105 km S of Colonia, Micronesia — February 26, 2021. Retrieved May 13, 2021 from https://www.earthquaketracker.org/earthquakes/event/us7000ddup/