Earthquakes
Volcanoes
Plate Tectonics
Boundaries
More About Earthquakes
100
What is earthquake?
A sudden and violent shaking of the ground, sometimes causing great destruction, as a result of movements within the earth's crust or volcanic action.
100
What are volcanoes?
A mountain or hill, typically conical, having a crater or vent through which lava, rock fragments, hot vapor, and gas are being or have been erupted from the earth's crust.
100
What is plate tectonics?
A theory explaining the structure of the earth's crust and many associated phenomena as resulting from the interaction of rigid lithospheric plates that move slowly over the underlying mantle.( The movement of the crust and lithosphere)
100
What are three types of boundaries?
Divergent, Convergent, and Transform plate boundaries
100
Where have volcanoes and earthquakes NOT occurred in North America recently? Name two
Maryland and Ohio
200
What causes earthquakes to happen?
Earthquakes are usually caused when rock underground suddenly breaks along a fault.
200
What are the types of monitored techniques for volcanoes? name two
remote sensing,Seismicity, ground deformation, geophysical measurements, gas, and hydrology
200
What causes plate tectonic to move?
The intense heat in the Earth's core that causes molten rock in the antle layer to move.And it moves in a pattern.
200
What is transform boundary?
When two plates slide past each other.
200
What is earth made out of?
The Earth is made out of many different materials and substances.
300
What is "Ring of Fire"?
"The Ring of Fire is an area in the basin of the Pacific Ocean where a large number of earthquakes and volcanic eruptions occur".
300
What can people do to reduce the risk from volcanic eruptions?
They can spray water onto the lava, and make a channel or pathway for the lava to follow.
300
How many major tectonic plates have scientists identified?
15
300
What is divergent boundary?
When two plates are moving away from each other.
300
How do volcanoes help to identify the locations of plates boundaries?
It is because some form when plate motions generate magma that erupts on Earths surface.
400
Is there an 'earthquake season' or 'earthquake weather'?
No, Earthquakes can occur at any time of the year and at any time of the day or night.
400
where do volcanoes occur the most?
"Active volcanoes are generally occur close to the major tectonic plate boundaries.And Many are located along the Earth's plate boundaries".
400
How do scientists identify plate boundaries?
They study datas from earthquakes
400
What is convergent boundary?
When two plate move toward one another and collide.
400
How are earthquakes measure?
"They install seismometers that sends information continuously via radio to a central recording site (observatory), scientists can determine the sizes and locations of earthquakes near a volcano."
500
Where do most earthquakes happen in North America? Name two of the states
1. Alaska 2. California 3. Hawaii 4. Nevada 5. Washington 6. Idaho 7. Wyoming 8. Montana 9. Utah 10. Oregon
500
How often do volcanoes erupt?
It depends on the volcano. Some volcanoes erupt very often and some like Kilauea almost never stop.
500
What is the relationship between plate tectonics, volcanoes and earthquakes?
When plate tectonics move and interact,they make convergent boundaries.So volcanoes and earthquakes both result from the movement of tectonic plates on convergent boundaries.
500
What is subduction zone?
Where two tectonic plates collide and, because of differences in density, one dives beneath the other.
500
What happens when volcanic eruptions and earthquakes occur? Bonus question: How old is the earth?
Earthquake: Buildings will shake, roads might separated, things in the building will fall down, and you might shake as well. Volcanoes: The mountain will explode, tress will be on fire, houses will be on fire, and people might die if it's near them or if it's a big one. Answer: 4.543 billion years
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