Parts of a Volcano
This is a bowl shaped area that forms around the volcano’s vent.
Crater
This type of zone is known as a Rift Volcanoes, which results in ridges.
Divergent Zone
This is the point beneath Earth’s surface where rock is under stress breaks, triggering an earthquake
Focus
This type of volcano has layers of lava alternate with layers of ash, cinders, and bombs. It has both quiet and explosive eruptions.
Composite Volcano
This is a weak spot in the crust where molten material (magma) comes to the Earth’s surface.
Volcano
This is a large underground pocket of magma
This is an area where magma from deep within the Earth’s mantle melts through the crust above it. This is how the Hawaii Islands formed.
Hot Spot
This is a measurement of earthquake strength based on seismic waves and movements along faults.
What is "magnitude"?
This stage of volcano is an active volcano that is not erupting, but supposed to erupt again.
Dormant Volcano
Large amounts of gas and a high viscosity (sticky) magma will form this type of eruption.
Explosive eruption
This is the point on the surface where magma leaves the volcano’s pipe
vent
This occurs after the ocean floor experiences a jolt, caused by a rising plate that pushes the water upwards.
Tsunami
__________ is the block of rock that forms the upper half of a fault. And _____________ is the block of rock that forms the lower half of a fault.
Hanging Wall, Footwall
This type of volcano repeated lava flows during quiet eruptions that gradually builds a broad, gently sloping mountain.
Shield Volcano
This is the point on the surface directly above the focus on an earthquake.
epicenter
This is a slab that forms when magma squeezes between layers of rock
Sill
This zone is where oceanic crust sinks back into the Earth’s mantle, melting to create volcanic materials
Subduction zone
These are the two main types of seismic waves an Earthquake emits. BONUS if you can name what materials each wave travels through.
What are 'P-waves (primary) and S-Waves (secondary). P-Waves travel through BOTH solid and liquid, but S-Waves only travel through solids.'
This type of volcano has an explosive cinder erupt from and pile up around the vent, creating a cone-shaped hill.
Cinder Cone Volcano
This is the amount of friction of a liquid substance (how well it flows).
Viscosity
This is part of the conduit that ejects lava and ash. (hint: see diagram)
Throat
Name the two ways of why volcanoes stop erupting. They are no longer __________ or no longer __________
1. buoyant
2. have sufficient pressure
Name the three types of scales used to measure earthquakes
Mercalli Scale, Richter Scale, Moment Magnitude
This volcano stage is a volcano that has had at least one eruption during the past 10,000 years. It could be dormant or erupting
Active Volcano
Small amounts of gas and (or) low viscosity (runny) magma will form this type of eruption.
Effusive Eruption