Earthquake Flashcards
What scientific device measures the strength of an earthquake?
Seismograph
How many devices must you have minimum?
3
The strength of an earthquake has units measured with?
Ritcher Scale
What is the actual increase in strength between 3.0 and 4.0?
10x
What are the three types of waves an earthquake gives off?
P, S, and Surface
The group of all three waves an earthquake can give off is called what?
Seismic
Of the three specific waves which travel the fastest?
P and S
Which waves can travel through the deep middle layers of earth?
P and S
Which waves cause the most damage in an earthquake?
Surface
Describe how the ground atoms move during the earthquake?
Rolling
Scientists develop early warning systems that use differences in?
Speed
The previous answer is because there is what type of plate boundary?
Slip fault
Name the location deep in the ground where the earthquakes power is centered?
Focus
Name the location directly above this point?
Epicenter
To find where an earthquake came from scientists use a process called?
Triangulation
What can only one of the previous monitoring stations tell you about you location?
Distance
What can only two of the previous monitoring stations tell you about your location?
2 spots
What should you do if you have 60 seconds b4 an earthquake?
Get outside
What should you do if there’s an earthquake rn?
Get under table
There’s an earthquake,a car sinks into the ground. The soil did what?
Liquifacation
What is the scientific name for scientists who study the Earth?
Geologists
We know earths core is solid metal by measuring the speed of?
Waves
What process inside the mantle is actually physically moving the plates?
Convection
Where in the US is the world’s 2nd strongest earthquake located?
Alaska
