QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem914059
USGS iscgem914059
24 Apr 1913, 12:15
21 km E of Union, Philippines
A magnitude 6.4 mw earthquake at 15 km depth.
Published location
Where is 21 km E of Union, 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.
9.737000, 126.309000
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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
iscgem914059
Coordinates
9.737, 126.309
Network
iscgem
Significance
636