Earthquakes/volcanos Flashcards
Ring Of Fire
The Ring of Fire is a region around much of the rim of the Pacific Ocean where many volcanic eruptions and earthquakes occur.
Strike-slip Fault
Strike-slip tectonics or wrench tectonics is the type of tectonics that is dominated by lateral movements
Normal Faults
a type of dip-slip fault where the hanging wall moves downwards from the footwall.
Reverse Faults
the block above the fault moves up relative to the block below the fault.
P waves
one of the two main types of elastic body waves, called seismic waves in seismology.
s waves
In seismology and other areas involving elastic waves.
epicenter
The epicenter, epicentre or epicentrum in seismology is the point on the Earth’s surface directly above a hypocenter or focus.
Focus
The focus is the place inside Earth’s crust where an earthquake originates.
Richter magnitude scale
quantitative measure of an earthquake’s magnitude
explosive volcano
an explosive eruption is a volcanic eruption of the most violent type.
nonexplosive volcano
eruption of lava appears to result from rapid, sub-surface gas release from magma ascending as a permeable foam.
Krakatoa
a caldera in the Sunda Strait between the islands of Java and Sumatra
. Yellowstone supervolcano
a volcanic caldera and supervolcano in Yellowstone National Park
San Andreas fault
a continental transform fault that extends roughly 1,200 kilometers through California.
. Mid-oceanic ridge
a seafloor mountain system formed by plate tectonics.
