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What is the difference between the two types of seismic waves?
Body waves travel through the interior of the earth (high frequency) while surface waves travel only through the crust.
What are the four phases involved in the Elastic Rebound Theory?
(1) Original Position (2) Buildup of Strain (3) Slippage (rupture) (4) Strain released
Why is it important to have at least three seismic data for triangulation?
To locate the point of intersection that is the epicenter of the earthquake
An earthquake belt that is characterized by active volcanoes and frequent earthquakes. Also considered as the zone of greatest seismic activity.
Circum-Pacific Belt or Pacific Ring of Fire
What are the evidences proving that the lithosphere is divided into plates?
(1) location of earthquake epicenters and (2) distribution of active volcanoes and mountain ranges
What is the difference between oceanic and continental lithosphere based on composition?
Oceanic - mafic and ultramafic, Continental - granitic, sedimentary and metamorphic
A type of division of earth's layers based on physical and behavioral properties
Mechanical Layers
How do P-waves travel through the earth's interior?
It can pass through both mantle and core but slowed and refracted due to the difference of densities
What is the difference in the behavior of P-waves and S-waves based on how they travel on the earth's interior?
P-waves can travel in all layers while S-waves can only travel through the mantle
What type of stress is exhibited by divergent plate boundaries?
Tensional Stress
What geographic landforms are associated with Convergent Plate Boundaries?
Deep-ocean trenches, Mountain ranges
What happens in a transform plate boundary?
Shear stress occurs causing two plates to slide past each other, producing fault zones
What happens during oceanic-continental convergence?
The oceanic plate subducts and the continental plate overrides forming Volcanic arcs
How do island arcs form?
They are formed when an older oceanic plate subducts under a younger oceanic plate
What geographic formation results from a continental-continental convergence?
Mountain Ranges
How do divergent boundaries move?
They move through mantle convection and lateral flow of magma underneath the plates
