It is not my fault
Most earthquakes occur along these areas because their slow movement causes large amounts of stress to build up over time.
What are plate boundaries?
These seismic waves can travel through all of the earth's layers or any state of matter
What are P-waves (Primary waves)?
This is the molten rock under the volcano
What is magma?
When the ground bulges out, scientists call it this.
What is deformation?
The scale used to measure an earthquake's intensity based on eyewitness observations and destruction.
What is the Mercalli's scale?
This type of fault is found where rocks are pulling apart resulting in one block of rock sliding downward in relation to the other.
What is Normal Fault?
These seismic waves travel only across the Earth's surface and usually cause the most damage.
What are surface waves?
This is the underground “pipe” that the magma flows through on its way to the vent
What is the conduit?
If you smell rotten eggs, it is this clue to eruption.
What are gases?
How the earthquake is felt by people is known as?
What is Intensity?
Earthquakes occur along a fault in this layer of the earth.
What is Lithosphere?
Part of an earthquake that receives the 1st wave
What is focus?
A volcano may have more than one of these openings to the outside world.
What are vents?
If lava that already erupted is very smooth, was it fast?moving or slow-moving?
What is fast-moving?
If an earthquake records a magnitude of 9.5, is this measurement recorded in the Mercalli Scale or Moment Magnitude scale?
What is Moment Magnitude?
The most dangerous type of fault
What is the strike slip fault?
Type of waves that travel across the surface like a snake (side to side).
What are Love waves?
When an eruption doesn’t produce lava, but hot ash, we call it this type of eruption
What is pyroclastic?
This is the scientific instrument that records & measures earthquakes on volcanoes
What is a seismometer?
The location and year of the most powerful recorded earthquake in North America.
What is Alaska and 1964?
A break in the Earth's Crust occurs at _______ .
What is Fault Line?
When 3 circles meet to give the epicenter is called ____.
What is Triangulation?
This can either be the magma while it is still hot and flowing out, or the name of the rock after it has hardened.
What is lava?
Name the 5 clues scientists use to predict eruptions
What are heat, gases, earthquakes, lava and deformation?
Location and year of the most powerful earthquake occurred on our Planet
What is Chile and 1960?