M5.0 Earthquake 149 km SW of Merizo Village, Guam — May 9, 2023
2023-05-09 22:31:53 UTC (2023-05-09) · approx. 8:31 AM UTC+10 local
Felt by 1 person across nearby locations.
On May 9, 2023 at 22:31 UTC, a magnitude 5.0 shallow crustal earthquake struck 149 km SW of Merizo Village, Guam, at a depth of 19.2 km and coordinates 12.1591°, 143.8722°. This earthquake was detected by 116 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 385, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 5.0 releases seismic energy equivalent to roughly 477 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.7 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
143.8722°E
Technical Information
Common Questions
How strong was the magnitude 5.0 earthquake near Merizo Village, Guam?
The magnitude 5.0 earthquake that struck 149 km SW of Merizo Village, Guam on May 9, 2023 at 22:31 UTC had a depth of 19.2 km. For context, this was a moderate earthquake that could be widely felt.
Where did the earthquake occur?
The earthquake epicenter was located at 12.1591°, 143.8722°, which is 149 km SW of Merizo Village, Guam.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.0 earthquakes can continue for days to weeks and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us6000kaqw). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, May 9, 2023). M5.0 Earthquake 149 km SW of Merizo Village, Guam — May 9, 2023. Retrieved April 2, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000kaqw/