QQuakeFacts
QuakeFactsEvidence report · prepared 3 September 2026https://quakes99.com/entity/us6000gc3k
USGS us6000gc3k

14 Dec 2021, 04:23

78 km W of Vallenar, Chile

A magnitude 5.5 mwr earthquake at 17.8 km depth.

Depth17.8 kmPublished hypocentral depth
Tsunami flagNot flaggedUSGS catalog flag, not a current warning
Updated22 December 2025Latest timestamp stored in this record

Published location

Where is 78 km W of Vallenar, 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.

-28.686100, -71.555500

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Map data © OpenStreetMap contributors

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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Nearby events with a similar magnitude

M 5.5

63 km SSW of San Agustín de Valle Fértil, Argentina

M 5.5

31 km ESE of Calingasta, Argentina

M 5.5

45 km NNW of Vallenar, Chile

M 5.5

62 km W of Coquimbo, Chile

M 5.5

71 km NNE of La Serena, Chile

M 5.5

32 km S of Coquimbo, Chile

Catalog fields and provenance
Event ID
us6000gc3k
Coordinates
-28.6861, -71.5555
Network
us
Significance
474