QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem896377
USGS iscgem896377
4 Mar 1949, 01:17
southern Sumatra, Indonesia
A magnitude 6.3 mw earthquake at 55 km depth.
Published location
Where is southern Sumatra, 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.
-4.418000, 101.907000
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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
iscgem896377
Coordinates
-4.418, 101.907
Network
iscgem
Significance
607