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tsunami answer
| Question | Answer |
|---|---|
| an earthquake that occurs after a larger earthquake in the same area | aftershock |
| the point beneath earths surface where rock break causing an earthquake | focus |
| a type of sesmic waves that moves on the ground up and down or side to side | s waves |
| a force that acts on rock to change its shape or volume | stress |
| a type of fault were rocks on either side move past each other sideways with little up or down motion | strike slip fault |
| stress that squeezes rock until it folds or brakes | compression |
| a scale that rates earthquakes acording to their intesity and how much damage they cause | mercali scale |
| a large wave produced by an earthquake on the ocean floor | tsunami |
| Potential Tsunami Locations | Subduction Zones |
| what are Subduction Zones | an area where an oceanic plate is being forced down into the mantle by plate tectonic forces. |
| Convergent Plate Boundary | occurs between two oceanic plates one of those plates will subduct beneath the other. Normally the older plate will subduct because of its higher density. |
| volcanic island formation pt 1 | The subducting plate is heated as it is forced deeper into the mantle, and melts. Magma spots created as a result,magma is lower density than the rock material |
| Volcanic island formation pt.2 | It ascends by melting and fracturing through the rock material.Magma chambers at the surface form a volcanic cone. early stages of this boundary the cones will be in deep ocean, later grow above sea level |
| example of Convergent Plate Boundary - Oceanic | Japan, the Aleutian islands and the Eastern Caribbean islands of Martinique,St. Lucia and St. Vincent and the Grenadines are examples of islands formed through this type of plate boundary |
| Convergent Plate Boundary - Continental | The two thick continental plates collide and both of them have a density that is much lower than the mantle, which prevents Subduction |
| Convergent Plate Boundary - Continental example | The Himalaya Mountain, and The Appalachian Mountain Range,are the best active examples of this type of plate boundary |
Created by:
15bgarcia
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