Which type of boundary caused the Chile earthquake?
Which type of boundary caused the Chile earthquake?
What caused the Chile earthquake of 1960? The Nazca plate is a large tectonic plate that underlies the Pacific Ocean near the western coast of South America. It is subducting under (that is, being forced under) the South American plate.
What fault caused the Chile earthquake?
The earthquake was caused by the Nazca and South American Plates converging. Thrust-faulting by the South American Plate as it overrides the Nazca Plate created the megathrust earthquake.
Which two plates are responsible for earthquakes in Chile?
Abstract. In summary (Fig. 10.31), the potential areas most subject to large-magnitude earthquakes lie above the coupling region between the Nazca and South American plates, which corresponds to the contact region between the trench and approximately 45-53 km depth along the Wadati-Benioff region.
What plate boundary was Valdivia on?
Chile been at a convergent plate boundary that generates megathrust EQ since Paleozoic era (500 million years ago) > strongest EQ ever measured in the world was the 1960 Valdivia EQ (9.5) and the most recent boundary rupture caused the 2007 Tocopilla EQ.
What type of plate boundary was the Chile earthquake 2010?
convergent plate boundary
This earthquake occurred along a convergent plate boundary, also referred to as the subduction interface zone between the Nazca and South American Plates (Hayes et al., 2013). Convergent plate boundaries are those where one tectonic plate is forced underneath another at a convergence point (Şen et al., 2015).
What is the plate boundary?
Plate boundaries are the edges where two plates meet. Most geologic activities, including volcanoes, earthquakes, and mountain building, take place at plate boundaries. Convergent plate boundaries: the two plates move towards each other. Transform plate boundaries: the two plates slip past each other.
What type of plate boundary caused the Maule earthquake?
This earthquake occurred along a convergent plate boundary, also referred to as the subduction interface zone between the Nazca and South American Plates (Hayes et al., 2013).
Is the Nazca plate convergent or divergent?
The Nazca plate is an oceanic tectonic plate in the southeastern Pacific Ocean that shares both convergent and divergent boundaries, corners multiple triple junctions, contains three seamount chains, overrides four hotspots, and is responsible for the creation of the Andean orogeny (Figure 1).
What type of plate boundary causes volcanoes to form?
Volcanoes are most common in these geologically active boundaries. The two types of plate boundaries that are most likely to produce volcanic activity are divergent plate boundaries and convergent plate boundaries. At a divergent boundary, tectonic plates move apart from one another.
Which type of boundary is known for causing big earthquakes?
convergent boundaries
About 80% of earthquakes occur where plates are pushed together, called convergent boundaries. Another form of convergent boundary is a collision where two continental plates meet head-on.
Is Chile a divergent boundary?
The Chile Rise or Chile Ridge is a submarine oceanic ridge formed by the divergent plate boundary between the Nazca Plate and the Antarctic Plate.
Why was there an earthquake in Chile in 1960?
The 1960 chile earthquake was generated when rocks in a subduction zone became locked. The Nazca Plate is a small oceanic plate that is moving eastward toward the continent of South America. The South American Place is moving westward due to the Mid-Atlantic Ridge as it separates.
Why was the Chilean earthquake a plate tectonics event?
The Chilean Earthquake: The plate tectonics. 0. Physics Today: Chile is a highly seismic area because of its proximity to the stressed Nazca and South American tectonic plates which are converging at a rate of 80 mm per year, one of the fastest rates on Earth.
Why is Chile considered to be a seismic area?
Physics Today: Chile is a highly seismic area because of its proximity to the stressed Nazca and South American tectonic plates which are converging at a rate of 80 mm per year, one of the fastest rates on Earth.
Where is the Nazca Plate located in South America?
The Nazca plate is a large tectonic plate that underlies the Pacific Ocean near the western coast of South America. It is subducting under (that is, being forced under) the South American plate.
