Earthquakes
A large ocean wave generated by vertical motions of the seafloor during an earthquake.
What is a Tsunami?
Parts of the mantle above a subducting plate melt and magma rises, eventually leading to the formation of this unique physical feature.
What is a Volcano?
Abraham Ortelius, a Dutch Cartographer, thought Earth’s continents had moved based on this observation.
What is Matching Coastlines/Continents fit together like a puzzle?
Huge pieces of crust and rigid upper mantle that fit together at their edges to cover Earth’s surface.
What are Tectonic Plates?
The answer to 2 + 2.
What is 4?
The number of earthquakes that are recorded each year.
What is 1 million?
The term that describes all the processes associated with the discharge of magma, hot fluids, and gases.
What is Volcanism?
In 1912, this German meteorologist presented his ideas about continental movement to the scientific community.
Who is Alfred Wegener?
Regions where two tectonic plates are moving apart.
What is a Divergent Boundary?
The measure of the energy released during an earthquake.
What is Magnitude?
The number system used to describe the peak intensity of Earthquakes.
What is the Richter Scale?
The outline of this belt corresponds to the outline of the Pacific Plate.
What is the Circum-Pacific Belt/Pacific Ring of Fire?
This ocean floor feature is where old plate material gets recycled.
What is an Ocean Trench?
When two plates collide, the denser plate eventually descends below the less-dense plate during this process.
What is Subduction?
The content percentage of this mineral determines whether or not a volcanic eruption will be calm or violent.
What is Silica?
The faster type of seismic wave that is always detected first.
What are Primary Waves (P-Waves)?
The name of the material ejected during an explosive volcanic eruption.
What is Tephra?
This ocean floor feature is where new plate material is "born."
What is an Ocean Ridge?
Type of boundary zone where mountains, like the Himalayas, are formed.
What is a Collision Zone?
This type of volcano is a mountain with broad, gently sloping sides and a nearly circular base.
What is a Shield Volcano?
The name of the instrument used in detecting Earthquakes.
What is a seismometer?
In addition to temperature, pressure and the presence of ______ and ______ ______ also affect the formation of magma.
What are Water and Dissolved Gasses?
An imaginary line on a map that shows points that have the same age.
What is an Isochron?
The type of boundary where Volcanoes can be found at the surface.
What is an Oceanic-Continental Convergent Boundary?
This anomaly is an unusually hot area in Earth’s mantle where high-temperature plumes of mantle material rise toward the surface, even though it's not near a plate boundary.
What is a Hot Spot?