Earthquake Vocab
Earthquakes
Volcano Vocab
Volcanoes
Earthquakes and Volcanoes
100
This is the fastest wave released by an Earthquake
What is a Primary or P Wave
100
What are the slowest waves released by an earthquake
What is the surface waves
100
A vent or fissure in the earth's surface through which magma and gases are released
What is a volcano
100
This is formed inside the earth when rock melts
What is magma
100
This volcano has periods of alternating quiet and violent eruptions.
What is a composite volcano
200
This is the machine that records the earthquake
What is a seismograph
200
This is the exact point inside the earth where an earthquake occurs
What is the focus
200
a volcanically active area of the earth's surface, commonly far from a tectonic plate
What is a hot spot
200
This type of volcano has a wide base and spreads out over a large region.
What is a shield volcano
200
How far does a P wave travel in 5 minutes
What is 2600 km
300
This is the plate boundary where the plates slide past each other horizontally.
What is a transform or strike slip boundary.
300
This scale measures the magnitude of an earthquake based on how much energy was released from it. Replaced the Richter scale in the 1970s
What is Moment magnitude scale
300
An igneous rock that is generally light in color and with lots of silica minerals inside of it
What is felsic
300
A large circular depression that occurs when the magma chamber below a volcano empties, and causes the ground to collapse in on itself.
What is a caldera
300
The P and S wave lag time is 3 mins and 20 seconds, how far away is the epicenter
What is 2000 km
400
This the location on the surface of the earth directly above the focus of an earthquake
What is the epicenter
400
This is the time difference between a P and S wave
What is lag time
400
Fragments of heated rock released during a violent volcanic explosion ranging from ash to large boulders.
What is pyroclastic materials
400
This type of boundary creates volcanoes
What is a convergent boundary
400
Subtract the following time: 10: 20 : 40 - 10: 15: 00
What is 5: 40 mins
500
A large wave usually created by an underwater earthquake or landslide.
What is a tsunami
500
This is the amount of damage caused by an earthquake
What is the intensity of an earthquake
500
Any activity that includes the movement of magma toawrd or onto the earth's surface
What is volcanism
500
Thick, sticky, magma high in viscosity with trapped gases causes what type of eruption
What is a violent/explosive eruptions
500
Subtract: 10: 00: 00 - 09: 38: 42
What is 21: 18 mins
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