QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp0000v5r
USGS usp0000v5r
20 Jun 1978, 21:03
8 km ESE of Kolchikón, Greece
A magnitude 6.4 ms earthquake at 3 km depth.
Published location
Where is 8 km ESE of Kolchikón, Greece?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
40.739000, 23.229000
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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
usp0000v5r
Coordinates
40.739, 23.229
Network
us
Significance
630