PS Earthquakes

What is a seismograph

A seismograph response to ground displacement: earthquakes, measure different motions; north to south east to west up and down

How many seismograph stations are need to find the epicenter of an earthquake

Three

What is the richter scale

Is a measure of the energy released by an earthquake

How do scientist use earthquakes

They use earthquakes to see what’s inside the Earth

Where do 80% of the earthquakes occur

Circum specific bet

What records earthquakes

Seismographs

Simple transverse waves look like the letter blank laying on its side. They also are known as blank curves.

S, sign

Longitudinal waves do blanks have Preston trails instead they have patterns of movement these areas are blank and blank

Not,rare fractions,compression

Crowded areas

Compressions

Stretched out areas

Rare fraction

P-wave

Primary fastest forward no destruction