M4.6 Earthquake 229 km NNE of Fais, Micronesia — May 22, 2023
2023-05-22 20:25:14 UTC (2023-05-22) · approx. 5:25 AM UTC+9 local
On May 22, 2023 at 20:25 UTC, a magnitude 4.6 shallow crustal earthquake struck 229 km NNE of Fais, Micronesia, at a depth of 10.0 km and coordinates 11.5460°, 141.5963°. This earthquake was detected by 40 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 326, placing it among routine seismic activity.
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.
Earthquake Details
141.5963°E
Technical Information
Common Questions
How strong was the magnitude 4.6 earthquake near Fais, Micronesia?
The magnitude 4.6 earthquake that struck 229 km NNE of Fais, Micronesia on May 22, 2023 at 20:25 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 11.5460°, 141.5963°, which is 229 km NNE of Fais, Micronesia.
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: us7000k4an). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, May 22, 2023). M4.6 Earthquake 229 km NNE of Fais, Micronesia — May 22, 2023. Retrieved July 29, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000k4an/