QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp0001v6h
USGS usp0001v6h
9 May 1983, 11:58
138 km NW of Ancud, Chile
A magnitude 6 mw earthquake at 23 km depth.
Published location
Where is 138 km NW of Ancud, Chile?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
-40.930000, -74.909000
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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
usp0001v6h
Coordinates
-40.93, -74.909
Network
us
Significance
554