Stress Types
The force that affects rock much like pulling on a piece of taffy, causing it to become thinner in the middle
What is tension
The place where two plates slip past each other, moving in opposite directions
What is a transform boundary
This layer contains our oceans and land
What is the crust
The first waves to arrive during an earthquake and can travel thorugh liquids and solids
What are P waves (primary)
Magma that reaches earh's surface
What is lava
Moves rock in the opposite directions
What is tension
The place where two plates come together
What is a convergent boundary
This layer is the driving force for continental drift.
What is the mantle
The deadliest earthquake in recorded history occurred in 1556, killing approximately 830,000 people and occurred in ......
What is Central China?
The ring of fire rims which ocean?
What is the Pacific
The stress type responsible for earth's largest earthquakes
What is shearing
This type of plate movement may create new seas when ocean water fills the gap between the plates as they move apart
What is a divergent boundary
The most dense layer inside earth
What is the inner core
Mercalli rating scale that is given when buildings have been completely destroyed, large cracks have formed in the ground and mass numbers of people are injured and killed
What is Mercalli scale rating X-XII
A volcano that shows activity but may not be in the process of erupting yet
What is an active volcano
The 3 stress types
What are tension, shearing and compression
When one of the plate edges sinks below the other at a converegent boundary
What is subduction
The layer responsible for earth's magnetic field
What is the outer core
These waves move the ground side to side and up and down and will not travel through liquids
S waves (secondary)
When an explosive eruption hurls out a mixture of hot gases, ash, cinders, and bombs
What is a pyroclastic flow
Explain why shearing is responsible for earth's largest earthquakes
sdfsd
Explain why volcanoes only form at a divergent or convergent boundary?
Divergent boundaries, where plates move apart, magma is able to rise and create new crust.
Convergent boundaries, where plates collide, often involve subduction, where one plate slides under the other, leading to melting and volcanic activity on the overriding plate.
Explain the difference between the lithosphere and the asthenosphere.
The lithosphere is the uppermost part of the mantle and is similar to the crust, very rigid. The asthenosphere is below the lithosphere and is much softer
Explain the difference between the moment magnitude and the mercalli scale rating on earthquakes
Moment magnitude measures the amount of energy and the mercalli rating assigns numbers based on level of damage done by the earthquake
The difference between an explosive and quiet volcano and what determines their eruptions are.....
What is the silica content