QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/iscgem694739
USGS iscgem694739
19 Aug 1977, 07:08
1977 Sumba, Indonesia Earthquake
A magnitude 8.3 mw earthquake at 15.9 km depth.
Published location
Where is 1977 Sumba, Indonesia 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.
-11.154000, 118.385000
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
iscgem694739
Coordinates
-11.154, 118.385
Network
iscgem
Significance
1060