Strength and intensity
What instrument do scientists use to record seismic waves/earthquake vibrations?
Seismograph
What are the type of waves that travel only through the inside of the Earth?
Body Waves (Primary & Secondary waves)
Where do most earthquakes occur?
Near tectonic plate boundaries where plates meet or interact.
Name the location in the world with the most tectonic plate activity (think about our latitude/longitude map)
The Ring of Fire
What is the measurement of the strength of an earthquake called?
magnitude
What are the fastest seismic waves that travel in a "push" motion through solids, liquids, and gases?
P-Waves
At which type of plate boundary do plates move away/separate from each other?
Divergent
Which coastline of the United States has the highest Earthquake Hazard level?
The West Coast
What is the degree to which people feel an earthquake and how much damage it causes called?
intensity
What is the name for a crack or break in Earth's crust where tectonic plates slide?
Fault
Which body waves are slower, move in a sideways motion, and only travel through solids?
S Waves
At which type of plate boundary do plates slide past or against each other?
transform
The solid outer shell of Earth in which earthquakes occur, consisting of the crust and the solid upper mantle.
lithosphere
Which scale is used to measure earthquake strength?
Richter Scale measures magnitude (strength) of an earthquake
What is the theory that describes what happens when too much stress is applied to a rock (and can cause earthquakes with a sudden release of energy)?
Elastic Rebound Theory
What can occur at a convergent boundary?
plates move together, mountains form, subduction occurs, volcanoes form, volcanic islands form
What is an example of a building design that could make a structure more resistant to an earthquake?
deep anchors, strong foundation, flexible building materials that can bend without breaking
What scale is used to measure the intensity of an earthquake?
Modified Mercalli Scale
What is the term for all waves of energy that travel through earth?
seismic waves
Name and describe the three types of stress on rock layers (in the lithosphere and asthenosphere)
Tensional (pull apart), Compressional (push together), Shear (twist)
How do scientists determine an earthquake's epicenter?
By timing seismic waves and triangulating data