The location of Earth's surface directly above an earthquake's focus.
What is epicenter?
100
vibrations caused by the rupture and sudden movement of rocks along a break or a crack in Earth's crust.
What is Earthquake?
100
A vent in Earth's crust through which molten rock flows.
What is Volcano?
100
The rock and soil are enriched with valuable nutrients.
What is positive results from volcanic eruptions?
200
energy that travels as vibrations and in earth
What is seismic wave?
200
Type of waves that travel through solids and liquids and travels deepest into the center of Earth.
What is Primary Waves?
200
tiny particles of pulverized volcanic rock and glass.
What is Volcanic Ash?
200
High Silica= High Viscosity= Thick Lava
Low Silica= Low Viscosity= Runny Lava
What is How does the amount of silica content change the viscosity of magma?
300
Scientist that studies earthquakes.
What is seismologist?
300
Measures magnitude and it's scale is increased by powers of ten.
What is Richter Scale?
300
A location where volcanoes form far from plate boundaries.
What is hot spot?
300
Worlds most active volcano.
What Kilauea?
400
A location inside Earth where seismic waves originate and rocks first move along a fault and from which seismic waves originates.
What is focus?
400
Evaluates the damage that results from shaking. Shaking is directly related to earthquake intensity ranges from 1 not noticeable to 12 everything is destroyed.
What is Modified Mercalli Scale?
400
a large volcano with gentle slopes of basaltic lavas, common along divergent boundaries and oceanic hotspots.
What is Shield Volcano?
400
It moves at more than 100 km/hr and has temperatures of 2,000 degrees Celsius.
What is Pyroclastic Flows?
500
an instrument that measures and records ground motion and can be used to determine the distance seismic waves travel.
What is seismometer
500
Measures the total amount of energy released by the earthquake and the unites on this scale are exponential. For each of one unit on the scale, the earthquake releases 31.5 times more energy.
What is Moment Magnitude Scale?
500
a large, steep-sided volcano that results from explosive eruptions of andesitic and rhyolitic lavas along convergent plate boundaries.
What is Composite Volcanoes?
500
forms at convergent boundaries where one plate is forced under another, produces explosive eruptions and is thick and traps gas causing pressure build up.