Data last collected:
QuakeFactsEvidence report · prepared 17 October 2026https://quakes99.com/entity/usp000cfuv
USGS usp000cfuv
23 Dec 2003, 05:58
central Mid-Atlantic Ridge
A magnitude 5.8 mwb earthquake at 10 km depth.
Published location
Where is central Mid-Atlantic Ridge?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
-0.696000, -20.330000
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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
usp000cfuv
Coordinates
-0.696, -20.33
Network
us
Significance
518
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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 central Mid-Atlantic Ridge earthquake: magnitude 5.8 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.