QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp0001sz9
USGS usp0001sz9
12 Feb 1983, 08:47
77 km ESE of Mangili, Philippines
A magnitude 6.3 mw earthquake at 51 km depth.
Published location
Where is 77 km ESE of Mangili, 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.
5.669000, 126.297000
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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
usp0001sz9
Coordinates
5.669, 126.297
Network
us
Significance
611