Earthquake and Volcano Review! (Test is Friday 12/13)
1) Define:
Fault
Focus
Epicenter
Elastic Rebound
Magnitude
Intensity
Body Wave
Surface Wave
2) True or False and why if it is false: Earth quakes can only occur along faults
3) True or False and why if it is false: Earthquakes can only occur along the tectonic plate boundaries
Indicate relative speed (fastest, slowest…) and how they move.
4) Primary waves –
5) Secondary waves –
6) What are the two types of Surface waves and two types of body waves?
Volcano Review
1) What are the 3 types of volcanoes?
2) How does water and silica-rich magma affect a volcanic eruption?
3) What are the four types of pyroclastic material?
4) What are the four types of lava?
5) Define:
Viscosity
Active
Dormant
Extinct
6) What are the three types of volcanic landforms?
7) What is the difference between magma and lava?
8) What is the difference between an explosive and nonexplosive eruption?
Earthquake and Volcano Review! (Test is Friday 12/13)
1) Define:
Fault
Focus
Epicenter
Elastic Rebound
Magnitude
Intensity
Body Wave
Surface Wave
2) True or False and why if it is false: Earth quakes can only occur along faults
3) True or False and why if it is false: Earthquakes can only occur along the tectonic plate boundaries
Indicate relative speed (fastest, slowest…) and how they move.
4) Primary waves –
5) Secondary waves –
6) What are the two types of Surface waves and two types of body waves?
Volcano Review
1) What are the 3 types of volcanoes?
2) How does water and silica-rich magma affect a volcanic eruption?
3) What are the four types of pyroclastic material?
4) What are the four types of lava?
5) Define:
Viscosity
Active
Dormant
Extinct
6) What are the three types of volcanic landforms?
7) What is the difference between magma and lava?
8) What is the difference between an explosive and nonexplosive eruption?
Earthquake and Volcano Review! (Test is Friday 12/18)
1) Fault – a place where two bodies of rock slide against one another
Focus – location along the fault where an earthquake begins
Epicenter – location on the surface of the earth directly above the focus
Elastic Rebound - When deformed rock snaps back to its original formation after an earthquake
Magnitude – The measurement of ground movement by an earthquake
Intensity – what is felt and the damage that is caused by an earthquake at different locations
Body Wave – Siesmic waves that travel only on the surface of the earth
Surface Wave - Siesmic waves that travel through the interior of the earth
2) Earth quakes can only occur along faults- True
3) Earthquakes can only occur along the tectonic plate boundaries - False – they can also occur inside the plates
as well but they are more frequent along the plate boundaries
Indicate relative speed (fastest, slowest…) and how they move.
4) Primary waves – Fastest, push pull (compression and expansion of rock)
5) Secondary waves – second fastest, side-to-side or shear
Surface waves – slowest, Love waves move side-to-side (horizontal motion) and Rayleigh move up and down
(vertical motion)
6) What are the two types of Surface waves? Love and Reyleigh
Two Body waves: Primary and Secondary Waves
Volcano Review
1) What are the 3 types of volcanoes? Composite – formed from explosive and nonexplosive eruptions, shield is
formed from nonexplosive eruptions, cinder cone is formed from mild explosive eruptions
2) How does water and silica-rich magma affect a volcanic eruption? As you increase water or silica-rich
magma you increase the likelihood of an explosive eruption
3) What are the four types of pyroclastic material? Ash, lapilli, bombs, blocks
4) What are the four types of lava? Aa, pahoehoe, pillow, blocky
5) Viscosity – how a liquid or lava flows, Active – a volcano that is currently erupting, Dormant a volcano that
has erupted in modern history but is not erupting now, and Extinct - a volcano that has not erupted in modern
history.
6) What are the three types of volcanic landforms? Volcanic plateau, lava dome, crater, caldera
7) What is the difference between magma and lava? Magma is molten rock inside the Earth and lava is molten
rock on the surface of the Earth.
8) What is the difference between an explosive and nonexplosive eruption? Explosive eruption is when
pyroclastic material is shot into the air. A nonexplosive eruption is when lava oozes out of a volcano.