What is it called when melted rock is below the surface?
Magma
What type of volcano is has a gentle slope, calm eruptions, and a broad base?
Shield volcano
Volcanoes most commonly form at the edges of these moving slabs of Earth's crust.
Tectonic Plates
This scale is commonly used to measure the magnitude of an earthquake.
The Magnitude Scale
This type of plate boundary occurs when two plates move apart
Divergent Boundary
What is viscosity?
The amount of resistance the liquid has to flow
Lower= flows easily
Higher= flows less easily
This type of volcano is the most common and is shaped like a cone, built up by layers of solidified lava flows.
Stratovolcano
What is magma chamber contain
Magma
Earthquakes commonly occur along these geological features.
Plate boundaries
This type of plate boundary occurs when two plates move together
Convergent boundary
What is is called when melted rock is on the surface
Magma
A small, steep-sided volcano formed by explosive eruptions of tephra and ash.
Cinder cone
his bowl-shaped depression forms around a volcano's vent after an eruption.
Crater
These are the two main types of seismic waves.
S-waves and P-waves
Transform boundary
What causes lower and higher viscosity?
Silica (SiO2)
What type of Volcano is Mt Fuji
Stratovolcano
This zone around the Pacific Ocean is known for its frequent volcanic activity.
Ring of Fire
The point on the Earth's surface directly above an earthquake's focus.
Epicenter
these two plates make up the San Andrea's fault
The Pacific and the North American plate
What makes higher viscosity Lava and magma more dangerous?
The higher viscosity causes gases to get trapped in the lava or magma which can cause more explosive eruptions.
What type of volcano is Mt Mauna Loa
Shield volcano
This volcanic hazard is a fast-moving avalanche of hot gas, ash, and rock that flows down the sides of a volcano during an explosive eruption.
Pyroclastic flow
The type of fault where two plates slide past each other horizontally.
Strike-slip fault
The plate that moves up along the other boundary is called?
Hanging wall