A small volcano, usually erupts only for a short time.
What is a cinder cone volcano?
100
The process of making older structures more earthquake resistant.
What is retrofitting?
100
Places where earthquakes and volcanoes are most likely to occur.
What are tectonic plate boundaries?
100
The pyroclastic material that can reach the upper atmosphere and circle the Earth for years.
What is volcanic ash?
200
Scientists watch this looking for bulges
What is slope
200
Magma that is blasted into the air and hardens
What is pyroclastic material?
200
Hypothesis based on the idea that a major earthquake is more likely to occur along the part of an active fault where no earthquakes have occurred for a certain period of time.
What is the gap hypothesis?
200
The depression created when the roof of a magma chamber collapses.
What is caldera?
200
The waves of energy that travel through Earth away from and earthquake in all directions.
What are seismic waves?
300
The instrument that records vibrations in the ground and determines the location and strength of an earthquake
What is a seismograph?
300
Large blobs of magma that harden in the air.
What are volcanic bombs?
300
A weight placed in the roof of a building to counteract building movement.
What is a mass damper?
300
A large, flat area covered by lava.
What is a lava plateau?
300
Created by a combination of explosive and nonexplosive eruptions.
What is a composite volcano?
400
A scale used to measure earthquake strength.
What is Richter magnitude scale?
400
Volcano category that is most likely to erupt in the near future.
What is an active volcano?
400
The beginning point of an earthquake.
What is the focus?
400
Deformation that leads to earthquakes.
What is elastic deformation?
400
It is what the strength of an earthquake is determined by.
What is the amount of ground motion?
500
A scale used to measure earthquake damage.
What is Modified Mercalli Intensity Scale?
500
The type of lava that flows mostly like dripping wax.
What is pahoehoe lava?
500
Method used to find an earthquake's epicenter.
What is the S-P time method?
500
A change in the shape of rock in response to stress.
What is deformation?
500
The location of the volcanoes of Hawaii and other places far from tectonic plate boundaries.