Vocabulary 1
What is the location where the molten rock that a volcano releases comes from? It is deep beneath the Earth’s surface.
magma chamber
Melted rock that flows out onto Earth's surface is...
Lava
Which type of fault sees the two sides slide past each other?
Strike-Slip Fault
Type of volcano that is created by mostly ash eruptions. They tend to be small in size,
Cinder Cone Volcano
Which type of seismic waves are the fastest?
P-Waves
What is the name of the instrument used to record seismic waves?
seismograph
What is the point where an Earthquake starts at?
Focus
Which type of fault sees the hanging wall move down relative to the footwall?
Normal Fault
Type of volcano that are mountains made of alternating eruptions of lava and ash
Composite volcanoes (or Stratovolcanoes)
Which type of seismic waves are the most destructive?
Surface Waves
This is the type of horizontal intrusion that does not deform the rock around it.
Sill
Which type of fault sees the hanging wall move up relative to the footwall?
Reverse Fault
What type of volcano is created from lava eruptions with low viscosity, creating broad, shallow sloped mountains?
Shield Volcano
Seismic Waves need to be detected at how many stations to pinpoint the epicenter of an earthquake?
3
What is formed from the collapse of the top of the volcano into the magma chamber below and can often produce a lake on top?
caldera
What volcanic hazard is a super-heated flow of volcanic material (tephra) and often travels at over 100 mph?
pyroclastic flow
Which scale is used to measure the intensity of an earthquake and is based on qualitative data?
Mercalli Scale
Does the dark colored Mafic lava have low or high silica content?
Low Silica
Which seismic wave has particles move parallel to the direction the wave travels, causing compression and expanding rocks, making them a longitudinal wave?
P-waves
What is the opening at the Earth’s surface where most volcanic material can reach the surface?
vent
What is the point of Earth's surface that is directly above an earthquake's point of occurrence
epicenter
Which scale is used to measure the magnitude of the earthquake by looking at the total energy emitted by an earthquake?
Moment Magnitude Scale
Which type of lava has a high gas content and, because of the escaping gas, will be very smooth?
Pahoehoe
Which type of wave is a transverse wave, in which particles move perpendicular to the direction the wave moves?
S-wave