QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem912187
USGS iscgem912187
23 Mar 1921, 22:44
290 km SSE of Amahai, Indonesia
A magnitude 6.5 mw earthquake at 15 km depth.
Published location
Where is 290 km SSE of Amahai, 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.
-5.771000, 129.905000
Open the interactive map ↗Map data © OpenStreetMap contributors
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.
Continue exploring
Nearby events with a similar magnitude
Catalog fields and provenance
Event ID
iscgem912187
Coordinates
-5.771, 129.905
Network
iscgem
Significance
652