Juan de Fuca Canyon
Coordinates: 47°50′00″N 125°30′00″W / 47.83333°N 125.50000°W
Juan de Fuca Canyon is a submarine channel (an ocean current), off the shore of Washington state, USA and the Strait of Juan de Fuca.
The Juan de Fuca Canyon is a submarine canyon running from the shelf break, off southern Vancouver Island to Juan de Fuca Strait. The Canyon is both narrow and deep and has sides that are steep. Over its 6 kilometres (3.7 mi) width it from at the rim it drops from 200 metres (660 ft) depth to over 500 metres (1,600 ft) deep at the thalweg.
Along a 350-km track, seismic profiles over Juan de Fuca Canyon show the canyon consists of two distinct parts. The upper canyon is narrow, extends southwestward down the continental slope. This area has an average gradient of 17 meters per km. It is there carved in consolidated or semiconsolidated material of the slope.
The lower part of the canyon trends northwestward, parallel to the shelf edge, with a gradient of only 7 meters per kilometer, terminating at the apex of Nitinat fan. The lower canyon represents a small fan and valley feature. Further, Nitinat Fan was constructed on the deep-sea floor at what is the presently the terminus of Juan de Fuca canyon.
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