M5.2 Earthquake 151 km E of Yigo Village, Guam — October 18, 2023
2023-10-18 08:11:28 UTC (2023-10-18) · approx. 6:11 PM UTC+10 local
Felt by 1 person across nearby locations.
On October 18, 2023 at 08:11 UTC, a magnitude 5.2 shallow crustal earthquake struck 151 km E of Yigo Village, Guam, at a depth of 10.0 km and coordinates 13.4286°, 146.2842°. This earthquake was detected by 86 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 416, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 5.2 releases seismic energy equivalent to roughly 951 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 2.3 km — a useful intuition for the size of the slip patch on the fault.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 1 citizen response to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
146.2842°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 5.2 earthquake near Yigo Village, Guam?
The magnitude 5.2 earthquake that struck 151 km E of Yigo Village, Guam on October 18, 2023 at 08:11 UTC had a depth of 10.0 km. For context, this was a moderate earthquake that could be widely felt.
Where did the earthquake occur?
The earthquake epicenter was located at 13.4286°, 146.2842°, which is 151 km E of Yigo Village, Guam.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.2 earthquakes can continue for days to weeks and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us6000lgbq). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, October 18, 2023). M5.2 Earthquake 151 km E of Yigo Village, Guam — October 18, 2023. Retrieved October 3, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000lgbq/