M4.9 Earthquake 30 km NNE of Yigo Village, Guam — January 19, 2023
2023-01-19 13:01:07 UTC (2023-01-19) · approx. 11:01 PM UTC+10 local
Felt by 31 people across nearby locations.
On January 19, 2023 at 13:01 UTC, a magnitude 4.9 intermediate depth earthquake struck 30 km NNE of Yigo Village, Guam, at a depth of 117.2 km and coordinates 13.7689°, 145.0324°. This earthquake was detected by 61 seismic stations with good location accuracy and was assigned a USGS significance rating of 381, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.9 releases seismic energy equivalent to roughly 338 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.4 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 31 citizen responses 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
145.0324°E
Technical Information
Common Questions
How strong was the magnitude 4.9 earthquake near Yigo Village, Guam?
The magnitude 4.9 earthquake that struck 30 km NNE of Yigo Village, Guam on January 19, 2023 at 13:01 UTC had a depth of 117.2 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 13.7689°, 145.0324°, which is 30 km NNE of Yigo Village, Guam.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.9 earthquakes can continue for several days and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us7000j5hv). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, January 19, 2023). M4.9 Earthquake 30 km NNE of Yigo Village, Guam — January 19, 2023. Retrieved March 31, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000j5hv/