QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/us1000hsaf
USGS us1000hsaf
15 Nov 2018, 20:02
South Sandwich Islands region
A magnitude 6.4 mww earthquake at 15 km depth.
Published location
Where is South Sandwich Islands region?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
-56.706500, -25.546000
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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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Nearby events with a similar magnitude
Catalog fields and provenance
Event ID
us1000hsaf
Coordinates
-56.7065, -25.546
Network
us
Significance
630