outer-rise earthquake
A seismological term for an earthquake occurring in the outer rise region seaward of a deep-sea trench, typically associated with subduction zones.
An outer-rise earthquake is an earthquake that occurs on the seaward side of a trench.
From English 'outer rise' + 地震 (earthquake). The term 'outer rise' refers to the topographic high on the seaward side of a deep-sea trench.