QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem902275
USGS iscgem902275
21 Dec 1939, 21:00
1939 Sulawesi Earthquake
A magnitude 8.1 mw earthquake at 150 km depth.
Published location
Where is 1939 Sulawesi Earthquake?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
-0.018000, 122.793000
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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
iscgem902275
Coordinates
-0.018, 122.793
Network
iscgem
Significance
1009