Earthquakes
These plate boundaries form rifts, or cracks, form as the plates separate.
What are divergent plate boundaries?
Volcanoes can form on the ocean floor.
What is true?
The boundary between two plates that move toward each other.
What are convergent boundaries?
Volcanoes and earthquakes occur along...
What are plate boundaries?
The water inside Crater Lake is known as a..
What is a caldera?
The numerical rating system that measures the energy, or magnitude of an earthquake.
What is the Richter Scale?
Long streams of molten rock from volcanoes are called
What are lava flows?
A crack or fracture in Earth's lithosphere along which movement occurs.
What is a fault?
Rapid, downhill movement of soil, rocks, and boulders.
What is a landslide?
It is important to study volcanic activity in order to ...
What is to warn people to evacuate.
This measures earthquake activity that is measured by impact on people and structures.
What is the Modified Mercalli Intensity Scale?
Molten rock stored below Earth's surface.
What is magma?
Graph used to measure earthquakes.
What is a seismograph?
These are more easily predicted.
What are volcanoes?
This is the name of the developing island in Hawaii
What is Loihi?
This number tells you the__________________of an earthquake.
What is magnitude?
Hot rock that is forced toward the crust where it melts partially to form a...
What is a hot spot?
USGS
What is the United States Geological Service?
Most earthquakes occur in the center of continents.
What is false?
A large ocean wage generated by vertical motion of the seafloor during an earthquake.
What is a tsunami?
When rocks break because of stress, the energy released is in the form of an...
What is an earthquake?
Fast moving avalanches of hot gas, ash and rock.
What are pyroclastic flows?
Part of the Earth's surface directly over the hypocenter?
What is the epicenter?
Two ways scientists use to predict volcanoes.
1.earthquake activity, 2.changes in tilt or ground
3.gas emissions,
4.lava samples
5.thermal changes in the volcano
The term used for Iceland's electricity source.
What is geothermal energy?