Tsunami
Biggest scares of a Tsunami Flooding, buildings destroyed and ________
Death
What is a volcano?
A weak spot in the crust where magma has come to the surface.
Where do most earthquakes occur?
Where tectonic plates meet/separate
how many tsunami happen per year
approximately two
What is a Tsunami? And how is it formed?
A large wave produced by an earthquake or mass movement on the ocean floor
What was the biggest stratovolcano to erupt in America?
Mt St. Helens
How do we measure earthquakes?
Seismogram/Seismograph - Richter Scale
how many volcanoes happen per year
around 50 to 70
Biggest Areas at Risk
Coastal areas, Ring of Fire
What is the difference between magma and lava?
Magma is still in the ground and lava has come out of the ground.
What is an earthquake?
The shaking that results from the movement of rock beneath Earth's surface
how long do earthquakes last
10 to 30 seconds
What is the height of tsunamis?
100ft
What are the 3 kinds of Volcanoes?
Active Dormant Extinct
What is it called where the earthquake occurred?
Epicenter
how long do tsunamis last
several hours
What is the speed of a Tsunami?
500-600 mph
What is the difference between high viscosity and low viscosity?
High viscosity = Slow flowing Low viscosity = Fast flowing
How many types of earthquakes are there?
tectonic, volcanic, collapse, and explosion
how many earthquakes happen per year
about 500,000