QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us2000izex
USGS us2000izex
31 Dec 2018, 10:49
52 km SSE of Calingasta, Argentina
A magnitude 5.3 mww earthquake at 99.4 km depth.
Published location
Where is 52 km SSE of Calingasta, Argentina?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
-31.775600, -69.234300
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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
us2000izex
Coordinates
-31.7756, -69.2343
Network
us
Significance
457