QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000gwd9
USGS usp000gwd9
20 Apr 2009, 13:21
128 km SE of Amahai, Indonesia
A magnitude 5.6 mwc earthquake at 19.9 km depth.
Published location
Where is 128 km SE 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.
-4.168000, 129.729000
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
usp000gwd9
Coordinates
-4.168, 129.729
Network
us
Significance
482