Is the earthquake depth related to the distance from an ocean trench?

Yes, earthquake depth is often related to the distance from an ocean trench. Generally, earthquakes occurring closer to ocean trenches tend to be deeper, as they are associated with subduction zones where one tectonic plate is being forced beneath another. As the distance from the trench increases, the depth of earthquakes typically decreases, with shallower earthquakes occurring in areas further away from the trench. However, this relationship can vary based on local geological conditions.