QuakeFactsEvidence report · prepared 2 September 2026https://quakes99.com/entity/usp0000nhd
USGS usp0000nhd
21 Apr 1977, 08:18
123 km SE of Honiara, Solomon Islands
A magnitude 6 ms earthquake at 33 km depth.
Published location
Where is 123 km SE of Honiara, Solomon Islands?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
-10.245000, 160.728000
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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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Catalog fields and provenance
Event ID
usp0000nhd
Coordinates
-10.245, 160.728
Network
us
Significance
554