Show:
Volcanoes
Earthquakes
Tsunamis
Siesmic Scales
Vocabulary
100
Three types of volcanoes.
What are Sheild, Cinder Cone, Composite (Stratovolcano)?
100
Most earthquakes occur on these.
What are plate boundaries.
100
Tsunamis are caused by this geological pheonomina.
What are earthquakes?
100
The two most commonly used siesmic scales.
What are the Modified-Mercalli and Richter scales?
100
A point on the surface of the earth at which a magma vent is exposed.
What is a volcano?
200
Three types of volcanic eruptions.
What are explosive, effusive, submarine?
200
Three types of earthquake waves.
What are Primary, Secondary, and Surface?
200
The word tsunami comes from this laguage of origin.
What is Japanese?
200
Of the two scales this one is most often used by scientists.
What is Richter Scale?
200
The geological pheonomina caused by a "stress fracture" of the bed rock.
What is an earthquake?
300
The mineral that mineral determines the explosiveness of a volcano?
What is silica?
300
The fault that causes most earthquakes.
What is transform (strike-slip)?
300
True/False: Tsunamis cannot not exceed 55 feet in height.
What is False.
300
What is the highest level of the Mercalli Scale.
What is XII (12)
300
Caused by the mid ocean ridge system, "underlying" cause of plate tectonics.
What is Seafloor Spreading
400
Which type of volcano is the tallest.
What is Composite (strato)
400
The name of the device used to measure the intensity of an earthquake.
What is a trick question, no device is used to measure intesity. magnitude is measured by siesmographs?
400
Tsunamis reach their peak height at this point.
What are coastlines?
400
The decade that both major scales were developed.
What is the 1930's?
400
An undersea vent that is heated to over 300 degrees feirenhiet and usually ejects sulfur compounds.
What are hydrothermal vents (black smokers)?
500
The name of 3 gases commonly relaesed from volcanoes.
What is CO2, H2O, H2S,...
500
True/False: A magnitude 7.8 earthquake releases more energy than the hiroshima bomb.
What is True?
500
Tsunami means is this in its language of origin.
What is "Great Harbor Wave"?
500
The amount of energy resleased measured by one whole number on the Richter Scale is equal to ___ times the previous whole number.
What is 31?
500
The result of a pyroclastic flow that dilutes itself with water.
What is a lahar?