M4.5 Earthquake 247 km NE of Fais, Micronesia — April 27, 2023
2023-04-27 21:55:34 UTC (2023-04-27) · approx. 6:55 AM UTC+9 local
On April 27, 2023 at 21:55 UTC, a magnitude 4.5 shallow crustal earthquake struck 247 km NE of Fais, Micronesia, at a depth of 10.0 km and coordinates 11.6177°, 141.7854°. This earthquake was detected by 48 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 312, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.5 releases seismic energy equivalent to roughly 85 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 767 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
141.7854°E
Technical Information
Common Questions
How strong was the magnitude 4.5 earthquake near Fais, Micronesia?
The magnitude 4.5 earthquake that struck 247 km NE of Fais, Micronesia on April 27, 2023 at 21:55 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 11.6177°, 141.7854°, which is 247 km NE of Fais, Micronesia.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.5 earthquakes can continue for several days and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us7000jwex). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, April 27, 2023). M4.5 Earthquake 247 km NE of Fais, Micronesia — April 27, 2023. Retrieved July 11, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000jwex/