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mantle
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Where does the Mohorovicic discontinuity occur?
Crust and Mantle.
What areas under the earth do earthquake waves bounce off?
Every discontinuity inside the earth can reflect seismic waves. These occur between major layers (crust, mantle, outer core, inner core) and are named after scientists (Mohorovicic and Gutenberg for example).
What is likely to occur at a plate boundary where oceanic crust collides with crust?
tides will occur.
What is likely to occur at a boundary where oceanic crust collides with continental crust?
tides will occur.
Where does the most present day faulting of rock occur?
at boundaries between moving parts of the crust
When does volcanoes occur more often?
Volcanoes occur at divergent and convergent plate boundaries due to the fact that crust is either being destroyed or created. Volcanoes also occur at hotspots, for example in Hawaii. Hotspots occur where the crust is particularly thin or weak, and plumes of magma rising from the asthenosphere (between upper mantle and the crust) end up giving rise to volcanoes or volcanic islands.
What earth crust?
The crust is the upper layer of the earth. It is where the movement of plates occur due to which earthquakes occur. The Earth's crust is a thin layer of rock, like skin on an apple.
Where do subduction's occur?
Where crust is destroyed
Convegent boundarie what changes to the crust occur?
The crust is compressed into mountains (if it is continental crust) or subducted back into the mantle if it is oceanic crust.
At what type of boundary did the 1960 Chilean earthquake occur?
At a convergent boundary between oceanic and continental crust where subduction is occurring.
Does an earthquake occur only in continental crust?
No, earthquakes can occur anywhere in the crust, oceanic crust or continental crust. An earthquake occurs when the hard brittle solid material of the crust fractures under stress. Earthquakes cannot occur deeper than the crust (the mantle is plastic and flows slowly under stress instead of fracturing, the outer core is liquid and flows even easier than the mantle).
Why do most earthquakes occur in the litosphere?
the crust
