QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem901628
USGS iscgem901628
4 Oct 1940, 08:55
Near the coast of Tarapaca, Chile
A magnitude 7.2 mw earthquake at 35 km depth.
Published location
Where is Near the coast of Tarapaca, 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.
-19.978000, -70.425000
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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
iscgem901628
Coordinates
-19.978, -70.425
Network
iscgem
Significance
800