M4.6 Earthquake 94 km ESE of Yigo Village, Guam — September 20, 2026
2026-09-20 07:32:58 UTC (2026-09-20) · approx. 5:32 PM UTC+10 local
On September 20, 2026 at 07:32 UTC, a magnitude 4.6 shallow crustal earthquake struck 94 km ESE of Yigo Village, Guam, at a depth of 22.9 km and coordinates 13.2388°, 145.7099°. This earthquake was detected by 46 seismic stations with good 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
145.7099°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.6 earthquake near Yigo Village, Guam?
The magnitude 4.6 earthquake that struck 94 km ESE of Yigo Village, Guam on September 20, 2026 at 07:32 UTC had a depth of 22.9 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 13.2388°, 145.7099°, which is 94 km ESE of Yigo Village, Guam.
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: us6000txkw). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, September 20, 2026). M4.6 Earthquake 94 km ESE of Yigo Village, Guam — September 20, 2026. Retrieved October 2, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000txkw/