Earthquakes
What is the point underground called where the earthquake originated?
Instrument used to measure seismic waves
How can volcanoes be formed?
Hotspots or Subduction
Area under the volcano where magma is stored
Magma Chamber
1883 eruption (loudest sound ever recorded)
Eruption of Krakatoa
Epicenter
The point directly above the point where the earthquake happened underground
What direction do Seismic waves travel?
Volcanic Explosivity Index, or scale used for measuring intensity of Volcanic eruptions
Pipes that lava go through to the outside of the volcano
1964 earthquake
Strongest North American earthquake ever (9.2 magnitude)
Tsunamis, landslides, and even avalanches in certain areas
Events triggered by earthquakes
What does P wave mean?
What does S wave mean?
P wave means Primary wave
S wave means Secondary wave
Hole usually at the summit of a volcano, where volcanic stuff erupts out
Crater
Area where lava, ash, and gas gets spewed out of the main vent
Crater
Strongest earthquake ever
1960 Chilean Earthquake
What are the 3 types of faults?
Normal, Reverse, and Strike-Slip
Waves of energy carried through the earth caused by certain natural disasters
Seismic Waves
Three statuses of a Volcano?
Active, Dormant, and Extinct
Vertical Pillar of ash and gases during eruption
Eruption Column
Supervolcano located in North America that erupted 640000 years ago
Yellowstone
What is the Hanging wall and Foot wall
The hanging wall is the rock above an inclined fault, and the foot wall is the rock under it
What type of wave causes the largest disturbance on a seismogram?
Surface Waves
What are the main types of Volcanoes?
A fast-moving current of hot gas and volcanic debris that flows down the slopes of a volcano
Pyroclastic flow
Strongest Volcanic Eruption ever recorded
Toba supervolcano