QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp00025ev
USGS usp00025ev
2 Jul 1984, 05:50
1 km E of Chacalapa, Mexico
A magnitude 6.4 mw earthquake at 46.6 km depth.
Published location
Where is 1 km E of Chacalapa, Mexico?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
16.804000, -98.441000
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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
usp00025ev
Coordinates
16.804, -98.441
Network
us
Significance
630