QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem886497
USGS iscgem886497
2 May 1957, 11:34
southern East Pacific Rise
A magnitude 6.3 mw earthquake at 15 km depth.
Published location
Where is southern 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.
-55.853000, -123.273000
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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
iscgem886497
Coordinates
-55.853, -123.273
Network
iscgem
Significance
613