QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem882968
USGS iscgem882968
20 Sept 1959, 07:08
central East Pacific Rise
A magnitude 6 mw earthquake at 15 km depth.
Published location
Where is central East Pacific Rise?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
-13.628000, -111.667000
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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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Nearby events with a similar magnitude
Catalog fields and provenance
Event ID
iscgem882968
Coordinates
-13.628, -111.667
Network
iscgem
Significance
561