M4.8 Earthquake near State of Chuuk, Federated States of Micronesia — January 9, 2021
2021-01-09 15:00:58 UTC (2021-01-09) · approx. 1:00 AM UTC+10 local
On January 9, 2021 at 15:00 UTC, a magnitude 4.8 shallow crustal earthquake struck near State of Chuuk, Federated States of Micronesia, at a depth of 10.0 km and coordinates 9.7235°, 148.1358°.
Physical scale: An earthquake of magnitude 4.8 releases seismic energy equivalent to roughly 239 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.2 km — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
148.1358°E
Technical Information
Common Questions
How strong was the magnitude 4.8 earthquake near State of Chuuk, Federated States of Micronesia?
The magnitude 4.8 earthquake that struck near State of Chuuk, Federated States of Micronesia on January 9, 2021 at 15:00 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 9.7235°, 148.1358°, which is near State of Chuuk, Federated States of Micronesia.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.8 earthquakes can continue for several days and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us6000d724). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, January 9, 2021). M4.8 Earthquake near State of Chuuk, Federated States of Micronesia — January 9, 2021. Retrieved March 20, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000d724/