QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000gwcb
USGS usp000gwcb
19 Apr 2009, 12:10
17 km S of Pematangsiantar, Indonesia
A magnitude 5.1 mwc earthquake at 174.8 km depth.
Published location
Where is 17 km S of Pematangsiantar, 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.
2.800000, 99.086000
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
usp000gwcb
Coordinates
2.8, 99.086
Network
us
Significance
400