QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgemsup912424
USGS iscgemsup912424
8 Feb 1920, 05:24
southwest of Australia
A magnitude 6.4 mw earthquake at 15 km depth.
Published location
Where is southwest of Australia?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
-35.809000, 109.537000
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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.
Need a current safety answer?
Use local emergency authorities and the live USGS event page. This historical evidence page is not an alert service.
Catalog fields and provenance
Event ID
iscgemsup912424
Coordinates
-35.809, 109.537
Network
iscgemsup
Significance
626