Volcano Anatomy
Scientists measure volcanoes and earthquake waves with a...
seismograph
Melted rock that flows out onto Earth's surface is...
Lava
Largest surface area found in a volcano
Shield Volcano
The starting location of an Earthquake.
Focus
What is it called when you take three or more locations to pinpoint to epicenter location?
Triangulation.
An underground holding pool for hot magma is called a...
Magma Chamber
Low silica content and erupts from a non explosive volcano
Basalt Lava
Volcano that forms without plate tectonic help is called....
Hot Spot
What type of fault takes place if the hanging shelf moves downward from the fault?
Normal Fault
Waves that travel in a push and pull motion on the crust.
P Waves
Form after the magma chamber beneath the volcano empties and the summit collapses will sometimes fill with water forming scenic lakes
Calera
Which type of magma has the highest composition of silica
Rhyolitic magma.
Steepest volcano that have short eruptions
Cinder Cone Volcano
The point of Earth's surface that is directly above an earthquake's focus is the...
Epicenter
A break in the crust along which rocks move is a...
fault
Water vapor, carbon dioxide, sulfur dioxide are all what and formed where?
Dissolved gases formed in the magma chamber
Most likely to have a quiet eruption
Shield Volcano
Faults that form when the crust slide past one another is called
Strike-Slip Fault
Waves that shake the earth's surface in a perpendicular manner
S wave
This magma composition component determines the viscosity of the magma.
Silica
Usually will cycle through having quiet and explosive eruptions.
Composite Volcano
Fault that occurs when the hanging shelf moves upwards is called
Reverse Fault
When reading a seismograph which wave type would show the largest movement.
Surface Waves