QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp000j5t5
USGS usp000j5t5
1 Aug 2011, 00:56
northern Sumatra, Indonesia
A magnitude 5.1 mb earthquake at 79.4 km depth.
Published location
Where is northern Sumatra, 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.
0.028000, 99.215000
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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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Nearby events with a similar magnitude
Catalog fields and provenance
Event ID
usp000j5t5
Coordinates
0.028, 99.215
Network
us
Significance
400