Meanings of oceanic trench in English

Some of the deepest oceanic trenches on Earth.

New Zealand lies in the seismically active "Ring of Fire", a 40,000 km arc of volcanoes and oceanic trenches that partly encircles the Pacific Ocean.

New Zealand lies in the seismically active "Ring of Fire", a 40,000-km arc of volcanoes and oceanic trenches that encircles much of the Pacific Ocean.