QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000gyuc
USGS usp000gyuc
1 Jul 2009, 21:53
101 km W of Umatac Village, Guam
A magnitude 5.4 mwc earthquake at 184.3 km depth.
Published location
Where is 101 km W of Umatac Village, Guam?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
13.268000, 143.724000
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What the numbers mean
Magnitude measures event size; depth locates the source below the surface. Neither value alone establishes local damage or personal risk.
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Use local emergency authorities and the live USGS event page. This historical evidence page is not an alert service.
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Catalog fields and provenance
Event ID
usp000gyuc
Coordinates
13.268, 143.724
Network
us
Significance
456