What is a...
What does A seismometer record?
(size-MOM-oh-tuhrz)
A seismometer records waves produced by an earthquake.
Most earthquakes occur at the depths of less than...
80 km. (50 mi)
About what amount of our Earthquakes happen in the Ring of Fire?
About 90%
Whats a Magnitude?
A Magnitude is the measure of the amount of energy released by an earthquake.
Why do Earthquakes happen along the boundaries of Tectonic Plates?
Because the pressure from the movement of the plates pushes on nearby faults.
Where and when was the largest Earthquake in the world ever?
Chile in 1960!
Whats a Earthquakes focus?
An Earthquake's focus is the place where the slipping begins.
What percent of Earthquakes happen on the Ocean floor?
About 80%
What could a 4.0 earthquake do?...
It could shake your house as if a large truck were passing by.
Whats a Tsunami?
A Tsunami is like a flood but with a huge amount of water that can destroy a whole city!
How much more energy does a 7.6 earthquake produce than a 5.6 earthquake?
About 900 times more energy.
What could a 6.0 earthquake do?...
It would knock stuff off shelves and some houses windows will break.
Whats a Epicenter?
A Epicenter is like the middle of the earthquake.
What percent of Earthquakes happen on land?
About 20%
What could a 9.0 earthquake do?...
Whole cities will flatten and a bunch of damage will be done.