Quakes I
Location and Measurement
Quakes II
Earth's Interior
Surprise Me..
100
Type of earthquake wave that can only travel through solid material
What is S wave
100
The scale that is used to measure Earthquake damage is called.
What is Modified Mercalli Scale
100
The study of earthquakes.
What is seismology
100
The brittle outer layer of the Earth that includes the crust and upper most portion of the mantle.
What is the lithosphere.
100
Massive waves often caused by the vertical displacement of a slab of seafloor along the fault on the ocean floor.
What is a tsunami
200
Last earthquake wave that causes the most destruction
What are surface or L waves
200
You need this many seismic station seismograms to locate an earthquake epicenter
What is three
200
The position of the Earth's surface directly above the source of the earthquake.
What is the epicenter.
200
Most of what we know about Earth's interior comes from...
What is seismic waves.
200
An earthquake of magnitude 6 released about _____ times as much energy as an earthquake of magnitude 5.
What is 32
300
A system of forces that pull rock away from a common point are called
What are tension forces?
300
What can you infer about an earthquake if a seismic station only receives P wave data.
What is that earthquake was located on the other side of the Earth from the seismic station.
300
The Richter scale measures the _____ of an earthquake.
What is the magnitude (amplitude of the largest wave) or energy
300
The Earth's core is composed mainly of...
What is iron and nickel
300
The volcanoes Mauna Loa and Kilauea are associated with this igneous feature that may reach all the way from the Earth's outer core.
What is a mantle plume or hot spot
400
Rock will deform until they reach this
What is elastic limit?
400
What information from a seismogram is needed to locate an earthquake?
What is difference in arrival times of P and S waves?
400
This type of seismic wave is the fastest, and the only one that can pass through the Earth's core.
What is a P wave
400
The comparatively weak layer of mantle just beneath the lithosphere.
What is the asthenosphere.
400
The idea that an earthquake is likely in an area because one has not occurred in a long time
What is Seismic Gap
500
For every second of travel, P waves out pace S waves by about how much?
What is 9 km
500
The current most accurate scale used for determining an earthquakes true magnitude
What is Moment Magnitude Scale
500
Using three separate seismographs to determine the distance to the epicenter of an earthquake is called...
What is triangulation
500
Divisional boundary in the asthenosphere that divides the crust from the upper mantle
What is the Moho or Mohorovicic Discontinuity
500
The strongest earthquake to strike the U.S. in recorded history occurred in this state.
What is Alaska
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