What plates caused the Chile earthquake?
Chile is located on the South American Tectonic Plate, directly to the west is the Nazca Plate. The South American Plate and the Nazca Plate moved in a quick motion which caused the massive earthquake.
What two plates were involved in the earthquake?
Tectonic Plate Boundaries
The Pacific Plate (on the west) slides horizontally northwestward relative to the North American Plate (on the east), causing earthquakes along the San Andreas and associated faults. The San Andreas fault is a transform plate boundary, accomodating horizontal relative motions.
What was the biggest tsunami ever?
What is the plate boundary between Nazca and South America?
According to the given figures, convergent oceanic-oceanic plate boundary takes place between the South American Plate and the Nazca Plate. The Peru–Chile Trench outlines the boundary between the subducting Nazca Plate and the overriding South American Plate. The trench was created thanks to a convergent boundary.
Why are megathrust earthquakes so powerful?
In a megathrust earthquake area, one plate pushes under another in a so-called subduction zone. The fault interface is almost horizontal. Typically the fault descends at 10–20° from the horizontal. … Together, these factors make a megathrust earthquake the most powerful in existence.
What happens if a tectonic plate breaks?
Plates occasionally collide and fuse, or they can break apart to form new ones. When the latter plates break apart, a plume of hot rock can rise from deep within the Earth’s interior, which can cause massive volcanic activity on the surface.