Data last collected:
QuakeFactsEvidence report · prepared 19 October 2026https://quakes99.com/entity/usp00011hg
USGS usp00011hg
25 Jun 1979, 06:29
35 km NW of Madang, Papua New Guinea
A magnitude 6.2 mb earthquake at 189 km depth.
Published location
Where is 35 km NW of Madang, Papua New Guinea?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
-4.980000, 145.577000
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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
usp00011hg
Coordinates
-4.98, 145.577
Network
us
Significance
591
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Questions this evidence can answer
01What exactly is this record?
Use the name, place, date and identifiers above to confirm that you have the right 35 km NW of Madang, Papua New Guinea earthquake: magnitude 6.2 and depth | QuakeFacts record.
02What does the evidence establish?
Read the reported values with their units, coverage dates and source notes. Keep observed facts separate from estimates or interpretation.
03What should I verify next?
Follow the primary-source links and check the limitations before using this evidence for a decision, comparison or citation.
A closer look at 35 km NW of Madang, Papua New Guinea
Depth in another unit
The recorded event depth of 189 km is approximately 117.44 miles below the source reference surface. Depth alone does not describe damage or local hazard.
Interpreting the recorded coordinates
The published position for 35 km NW of Madang, Papua New Guinea is 4.98° south and 145.577° east. This expresses the source coordinates in hemispheres; it does not establish an entrance, public access or a safe route.