QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem818415
USGS iscgem818415
28 Aug 1968, 21:42
56 km ESE of Suklayin, Philippines
A magnitude 6.4 mw earthquake at 18.1 km depth.
Published location
Where is 56 km ESE of Suklayin, 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.
15.508000, 122.012000
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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
iscgem818415
Coordinates
15.508, 122.012
Network
iscgem
Significance
634