QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem907212
USGS iscgem907212
2 Feb 1930, 14:56
253 km WSW of Adak, Alaska
A magnitude 6.5 mw earthquake at 25 km depth.
Published location
Where is 253 km WSW of Adak, Alaska?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
51.335000, 179.810000
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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
iscgem907212
Coordinates
51.335, 179.81
Network
iscgem
Significance
640