causes rock particles to move in a rolling or elliptical motion in the same direction that waves travel . slowest wave. causes most damage to earth's surface.
What is a surface wave?
100
a vent in Earth's crust through which magma flows
What is a volcano?
100
tiny particles of pulverized volcanic rock and glass
What is volcanic ash?
200
At this boundary, tremendous amounts of energy are release. This is disastrous.
What is convergent boundary?
200
seismic waves originate where rocks first move along the fault at a location inside Earth
What is the focus?
200
measures ground motion to determine earthquake magnitude.
What is the Richter Scale?
200
besides along plate boundaries, where else do volcanoes occur?
What is a hot spot?
200
small, steep sided volcanoes that erupt gas-rich, basaltic lavas
What is a cinder cone?
300
when stress builds in places like plate boundaries, rocks can form...
What is a fault?
300
the location on Earth's surface directly abouve the earthquake's focus
What is the epicenter?
300
Number Richter scale begins at.
How high does it go up to
What is zero?
What is no upper limit?
300
molten rock in volcano and out of the volcano
What is magma and lava?
300
common along divergent plate boundaries and oceanic hot spots. large, gentle slopes of basaltic lava
What is a shield volcano?
400
In 1906, one of the most destructive earthquakes in California originated when bvlocks of rock along this fault moved.
What is the San Andreas Fault?
400
cause particles in the ground to move in a push-pull motion similar to a coiled spring. fastest among the waves. can travel through solids and liquids.
What is a P wave?
400
used to evaluatge earthquake intensity based on the damage that results, description and effects on people and structures.
What is the Modified Mercalli Scale?
400
an area of volcanic and earthquake activity
What is the Ring of Fire?
400
large, steep sided vocanoes that result from explosive eruptins of andesitic and rhyolitic lava and ash anlong a convergent plate boundary
What is composite cone?
500
the vibrations in the ground that result from movement along breaks in the lithosphere.
What is an earthquake?
500
cause rock particles to vibrate perpendicular to the direction that waves travel. slower than p-waves. only travels through solids.
What is an S Wave?
500
measures total amount of energy released during and earthquake