Where Is The Peru Chile Trench?

The Peru-Chile Trench, lying off southern Ecuador to central Chile, is interrupted off southern Peru by the northeast-trending Nasca Ridge. North of Nasca Ridge the trench reaches a maximum depth of nearly 6500 m.

Where is Peru-Chile Trench located?

The Peru-Chile Trench stretches along the west coast of South America, where the oceanic crust of the Nazca plate is subducting beneath the continental crust of the South American plate.

How old is Peru-Chile Trench? Nazca-South America convergence over the past 23 million years has created the 6-km-deep Peru-Chile trench, 150 km offshore. High pressure between the plates creates a locked zone, leading to deformation of the overriding plate.

How deep is the Chilean trench?

Depths of the target stations will range between 1,000 – 8,065 m. Atacama Trench, located off the coasts of Peru and Chile, is one of the deepest ocean trenches in the world and has a maximum depth of 8,065 m. It is almost 6,000 kilometers long.

What lives in the Peru-Chile Trench?

The expedition to the Peru-Chile trench in the South East Pacific Ocean revealed a new species of snailfish living at 7000m, never before caught or captured on camera. Mass groupings of cusk-eels and large crustacean scavengers were also discovered living at these depths for the first time.

What is the longest trench in the world?

The longest trench is the Peru-Chile Trench, which extends some 5,900 km (about 3,700 miles) along the west coast of South America. Trenches are relatively narrow, usually less than 100 km (about 60 miles) wide.

Why are most oceanic trenches in the Pacific?

Why are most oceanic trenches found in the Pacific Ocean? The Pacific Ocean is shrinking and plates are descending below surrounding plates along its edges, hence the creation of trenches.

How far down does the Mariana Trench go?

It is 11,034 meters (36,201 feet) deep, which is almost 7 miles. Tell students that if you placed Mount Everest at the bottom of the Mariana Trench, the peak would still be 2,133 meters (7,000 feet) below sea level.

How deep is the Puerto Rican trench?

a long, deep depression in the ocean floor. deepest place in the Atlantic Ocean, 8,400 meters (27,560 feet) deep.

Why are all the earthquakes on one side of the Peru Chile trench?

The subduction of the Nazca Plate below the South American Plate along the Chile-Peru Trench is associated with numerous earthquakes. Several of these earthquakes are notable for their size, associated tsunamis, and landslides.

Why is the Juan de Fuca plate so small?

For now, we can say that the Juan de Fuca plate is a shrinking remnant of the Farallon plate, which was introduced in Chapters 5 and 17 as the paleo-Pacific plate that underthrust the Cordillera to create the Laramide orogeny and then sank to form the ignimbrite flare-up (Fig. 5.13).

What is the slip rate of the Atacama trench?

Preliminary findings include: 1) the AFS was active as a brittle-ductile sinistral shear zone between ~138 Ma to 110 Ma at a relatively low slip rate of ~2 km/Myr, suggesting that either some trench-parallel translation occurred in the forearc and/or that convergence was less oblique than previously thought; 2) …

Why do earthquakes occur in western South America?

Some of them are continental plates, which are at a greater altitude than the other type of plate, the oceanic plates. … The geological instability of the region makes earthquakes common all along the western region of the continent, particularly along the southern half of Peru.

Where is the Japan Trench located?

Japan Trench, deep submarine trench lying east of the Japanese islands, in the floor of the western North Pacific Ocean. It is one of a series of depressions stretching south from the Kuril Trench and the Bonin Trench to the Mariana Trench.

How far is the Tonga Trench from the East Pacific Rise?

Tonga is located at the plate boundary where the Pacific plate is subducting under the Australian plate. Along the coast of Chile, the Nazca plate is subducting below the South American plate. The East Pacific Rise, the boundary between the Pacific and Nazca plates, is about 6200 km from Tonga and 4600 km from Chile.

Where do trenches occur?

Trenches are long, narrow depressions on the seafloor that form at the boundary of tectonic plates where one plate is pushed, or subducts, beneath another.

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