QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem890480
USGS iscgem890480
29 Mar 1954, 04:01
110 km SW of Basco, Philippines
A magnitude 6.1 mw earthquake at 25 km depth.
Published location
Where is 110 km SW of Basco, Philippines?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
19.647000, 121.342000
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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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Catalog fields and provenance
Event ID
iscgem890480
Coordinates
19.647, 121.342
Network
iscgem
Significance
576