Data last collected:
QuakeFactsEvidence report · prepared 24 October 2026https://quakes99.com/entity/usc000ltax
USGS usc000ltax
28 Dec 2013, 15:21
77 km SSW of Okurcalar, Turkey
A magnitude 5.9 mww earthquake at 40.7 km depth.
Published location
Where is 77 km SSW of Okurcalar, Turkey?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
36.028000, 31.310000
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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
usc000ltax
Coordinates
36.028, 31.31
Network
us
Significance
554
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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 77 km SSW of Okurcalar, Turkey earthquake: magnitude 5.9 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 77 km SSW of Okurcalar, Turkey
Depth in another unit
The recorded event depth of 40.7 km is approximately 25.29 miles below the source reference surface. Depth alone does not describe damage or local hazard.
Interpreting the recorded coordinates
The published position for 77 km SSW of Okurcalar, Turkey is 36.028° north and 31.31° east. This expresses the source coordinates in hemispheres; it does not establish an entrance, public access or a safe route.