Earthquake/Volcano Flashcards
(20 cards)
Ring of Fire
contains nearly 75% of the world’s active volcanoes
Strike-Slip fault
crust slides horizontally past each other
Normal fault
crust is pulled away from each other
Reverse fault
crust is pushed together
P-waves
a seismic wave that causes particles of rock to move in a bach and forth direction
S-waves
a seismic wave that causes particles of rock to move in a side to side direction
epicenter
the point on earth’s surface directly above an earthquakes starting point, or focus
focus
the point along a fault at which the first motion of an earthquake occurs
Richter magnitude scale
measures the strength of earthquakes
explosive volcano
less common than nonexplosive volcanoes but the effects are much greater than a nonexplosive volcano
nonexplosive volcano
much more common than explosive volcanoes and these volcanos produce relatively calm flows of lava
Krakatoa
a caldera in the Sunda Strait
Yellowstone supervolcano
a supervolcano in Yellowstone National Park
San Andreas fault
located in western California
Mid-oceanic ridge
located in the Atlantic Ocean
shield volcano
built of layers of lava released from repeated nonexplosive eruptions
cinder cone volcano
made of pyroclastic material
composite volcano
one of the most common types of volcanoes
hot spot
a volcanically active area of Earth’s surface far from a tectonic plate boundary
Mt. Vesuvius
a somma-stratovolcano located on the Gulf of Naples in Campania, Italy
