Magnitude 5.3 Earthquake Depth 10 km Strikes Owen Fracture Zone Region on 23rd July 2025

It is a strike-slip fault, meaning that the plates are moving horizontally past each other.

It features a newly identified 800 km long submarine fault system, with clearly delineated strike-slip fault segments.

While the Owen Ridge is a bathymetrically prominent feature, the primary plate boundary is defined by the active fault system, not the ridge itself.

The fault’s slip rate is the slowest on Earth, estimated at 2 mm per year.

The area is characterized by a mix of pelagic and turbiditic deposits, with some older sediments being disturbed by the fault’s activity.

A major pull-apart basin is located at approximately 20°N latitude within the fault zone.

The fault system shows evidence of ongoing activity, including the formation of folds, mud ridges, and thrusts in the sedimentary cover.


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