Earthquakes 1
Earthquake waves are called what?
Seismic waves
What happens when friction between two faults builds up?
an earthquake
What is the name of the supercontinent that was believed to be made up of all of the landmasses on Earth?
Pangea
What, believed to be going on in the Earth's mantle, is causing the Earth's plates to move?
Convection Currents
Molten rock comes in two forms. Which one is found on the Earth's surface, and which one is found below the Earth's surface?
Lava - On Earth's surface
Magma - Below Earth's surface
What do we call it when an earthquake happens in the middle of the ocean, causing a giant wave to be pushed towards the shore?
Tsunami
Earthquakes are ranked in order of most intense to least intense using what?
Richter Scale
The hypothesis that continents have slowly moved to their current locations is called
continental drift
Name two geologic events that happen on or around plate boundaries.
Earthquakes and Volcanoes
The formation of the Hawaiian Islands is one example of volcanoes forming over a what?
hot spot
What special tool do Scientists use to record and study earthquakes?
Seismograph
The point beneath the surface where rock breaks and an earthquake starts is the
Focus
The process by which the ocean floor sinks beneath a deep-ocean trench and back into the mantle is known as
subduction
Name two pieces of evidence that are used to support the theory of continental drift, stating that all of Earth's landmasses were once one giant supercontinent.
Similar Fossils
Similar Mountain Ranges
Puzzle-like pieces
Name the three main types of volcanoes.
Cinder Cone
Composite (Stratovolcano)
Shield
Name all three types of seismic waves that an earthquake produces, in the order that they occur.
P - waves
S - waves
L - waves
The point on the Earth’s surface just above where the earthquake started is the
Epicenter
Where are the youngest rocks in relation to a mid-ocean ridge where new rock is being formed?
The rocks closest to the ridge.
Name all three types of plate boundaries, and draw arrows to represent the direction in which they move.
Convergent
------> <--------
Divergent
<------ ------->
Strike - Slip (Transform)
------------->
<-------------
Volcanoes are most likely to form at which type of plate boundary?
Convergent
How many detectable Earthquakes are recorded each year around the world?
500,000
How much stronger is an earthquake that measures a 9 on the Richter Scale compared to an earthquake that measures a 6?
1000x stronger (Each level is 10x stronger than the previous level)
Name any two faults, and the plate boundary they are found at.
Normal Fault - Divergent
Reverse Fault - Convergent
Strike-Slip Fault - Strike-Slip (Transform)
What is the name of the famous active fault line in California? What type of fault is it?
San Andreas Fault, Strike-Slip (Transform)
A major belt of volcanoes found around the Pacific Ocean is known as the what?
Ring of Fire