Chapter 17 Flashcards
What is an earthquake
And earthquake Consists of a series of shock waves traveling through the earth
It is an elastic rebound
The movement of rocks shift to their unstressed positions
What is a seismograph
used to detect and measure earthquake waves
What is the Richter scale
Named For Charles Richter used to rate
earthquakes
What is the magnitude
Magnitude is the energy released from an earthquake
What is intensity
Intensity is the measure of the destructiveness of an earthquake
What is focus
Focus is the center of an earthquakes activity
What is an epicenter
The epicenter is the place on the earths surface that is directly above the earthquakes focus(center)
What is a tsunami
Devastating waves
What is a P wave
A P wave is the first wave of an earthquake
What is a S wave
A S wave is the second wave of an earthquake
What is a L wave
The L wave is the last wave of an earthquake. It is the most destructive wave
What is a volcano
A volcano is a landform built up by solidified molten rock that has come to the earths surface through a vent from a source of magma deep in the earth
What is a vent
A hole widened by magma
What is lava
Magma above the surface
What is a volcanic cone
It is where ejected lava may solidify around the vent
What is a crater
A crater is a depression at the top of the volcanic cone
What is it caldera
I caldera is a huge depression on top of the volcano
What is a glowing avalanche
A hot mixture of solid particles suspended in water vapor or other gases
What is the lahar
I lahar is a volcanic mudslide
What is a fumaroles
Fumaroles are vents in the ground
What is Ash
Ash is a fine mist of solid lots of particles
What is pyroclastic material
Pyroclastic materials are solidified lava containing ash senders bombs and sometimes large chunks of rock
What is tephra
Tephra is an accumulation of loose ash
What are cinders
Cinders are. Like ash but are larger
What are bombs
Bombs are blocks of llama that solidify as a fly through the air
What are shield volcanoes
Shield volcanoes are. Dumb shaped that emit runny lava
What is a Cindercone
Volcanoes that explosively eject pyroclastic material to produce send her phones
What is a composite come
A volcano that ejects lava and then pyroclastic material alternating is called a composite cone
What is the strata volcano
A stratavolcano is also a composite cone
What is an active volcano
An active volcanoes one that has a rep did within history and show signs that it could erupt anytime
What is a dormant volcano
A dormant volcano has not directed in our history but has the ability to rent
What is an extinct volcano
Volcano that won’t erupt
What is the Circum Pacific belt
Circum pacific belt is called the ring of fire
What is geothermal gradient
Geothermal gradient is the change of temperature with depth
What is a Hot Spring
Hot springs were heated water rises to the surface
What is a mug pot
I meant pot is a Hot Spring with mud
What is a geyser
The guys are is a thermal spring they just water from the ground in intervals
What is geothermal energy
Geothermal energy is heated groundwater used as an energy source
