Earthquake
Vibrations caused by the rupture and sudden movement of rocks along a break or a crack in Earth's crust.
EARTHQUAKE?
Earthquakes create these type of waves.
What are SEISMIC WAVES?
A crack in Earth's crust through which molten rock flows.
What is a VOLCANO?
What is the difference between MAGMA and LAVA?
Magma is inside the earth, Lava is after it has come out on the surface.
Under the base of the volcano, this is where the lava comes from.
Magma Chamber
The location on Earth's surface directly above the place inside Earth where rocks first move and seismic waves originate.
EPICENTER?
This type of seismic wave causes particles deep in the ground to move in a push-pull motion similar to a coiled spring. These waves arrive first to a seismometer.
What is a PRIMARY WAVE (or P WAVE)?
Most volcanoes occur at or near these types of locations.
What are PLATE BOUNDARIES?
A large, gentle-sloped volcano that results from smaller eruptions of runny or liquid lava along divergent plate boundaries and oceanic hot spots is termed this.
What is a SHIELD VOLCANO?
What is the Main Pipe or Vent
A location inside Earth where rocks first move along a fault and from which seismic waves originate.
What is a FOCUS?
A type of seismic wave that causes particles on top of the ground to move up and down in a rolling motion is called this. They are also the slowest traveling waves.
What is a SURFACE WAVE?
The area around the Pacific Ocean where roughly 75% of volcanoes on the Earth's surface are found is referred to as this.
What is the RING OF FIRE?
A large, steep-sided volcano that results from explosive eruptions and generally occurs along convergent plate boundaries is called this.
What is a COMPOSITE VOLCANO (or STRATOVOLCANO)?
Cracks in the sides of a volcano can become these...
Side Vents
A crack or fracture in Earth's lithosphere along which one block of rock moves toward, away from or past another.
What is a PLATE BOUNDARY?
This type of seismic wave causes particles to move at right angles relative to the direction the wave travels. These waves also arrive second to a seismometer.
What is SECONDARY WAVE (or S WAVE)?
What is the difference between a DORMANT and EXTINCT volcano?
Dormant is likely to erupt in the future. Extinct is very unlikely to ever erupt again.
This type of lava is what causes the creation of Composite Volcanoes.
What is a THICK LAVA?
This often forms at the top of a Composite Volcano after an eruption...
Crater
The three types of plate boundaries
What CONVERGENT, DIVERGENT, and TRANSFORM?
An instrument that measures and records ground motion and can be used to determine the distance seismic waves travel.
What is a SEISMOMETER or SEISMOGRAPH?
The three types of volcanoes we studied are called this?
What are CINDER CONE, COMPOSITE, and SHIELD VOLCANOES?
Composite volcanoes are called COMPOSITE or STRATOVOLCANOES because...
They are built of layer upon layer of ash, rock, and thick lava.
What are the four things that spew out of a volcano during an eruption?
Ash, gasses, rock fragments, lava