QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem812402
USGS iscgem812402
20 Feb 1969, 11:30
187 km N of Tobelo, Indonesia
A magnitude 6.4 mw earthquake at 47.5 km depth.
Published location
Where is 187 km N of Tobelo, Indonesia?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
3.405000, 128.233000
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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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Catalog fields and provenance
Event ID
iscgem812402
Coordinates
3.405, 128.233
Network
iscgem
Significance
634