# 8th Grade ??? Flashcards

1
Q

T or f focus earthquakes = most servers damage

A

True

2
Q

T or F epicenter of quake on earths surface

A

True

3
Q

To or F earthquakes can open and shut land and other things

A

False they can only cause fischers (cracks)

4
Q

T or F earthquakes over 8.0 happens very 3 weeks

A

Fakes it’s once or twice a year

5
Q

T or f surface waves cause most damage

A

True

6
Q

T or f tectonic plate in Indian Ocean question

A

False it’s e pacific rim

7
Q

To or f earths crust only moves during earthquakes

A

False it’s always moving

8
Q

What’s two fault blocks moving last each other vertically

A

Dip slip

9
Q

What’s the slow movement of rock

A

Fault creep

10
Q

Mathematical scale

A

Richter scale

11
Q

Point earthquake begins ?

A

Focus

12
Q

Risky hanging wall loves up?

A

Reverse

13
Q

Earths surface above focus

A

Epicenter

14
Q

Fault hanging wall moves down?

A

Normal fault

15
Q

Two blocks move paste avh other horizontally

A

Strike slip

16
Q

If you’re outside when an earthquake hits what should you do

A

Go to open field where nothing can fall onto you

17
Q

How are tsunamis formed and what do they effect

A

It’s after an earthquake happens underwater and forms a giant tidal wave that damages the shore

18
Q

Why is crawling under a table and doorway safe during an earthquake

A

It’s more sturdy and won’t break as easily me can protect you more

19
Q

Why do fires follow earhquakes

A

Powerlines fall and gas lines break

20
Q

Why do aftershocks occur

A

Earth is still adjusting and settling causing a mini earthquake

21
Q

How does Richter scale measure quakes and what do the ratings mean

A

Measures seismic activity and each level is 10 times greater than the level below it , 1 is least and 10 is most

22
Q

Earthquakes can go on for ????

A

Weeks

23
Q

Buildings in quake zone should be built???

A

So they can sway with waves

24
Q

How much more times is 7 than 4 on Richter scale

A

1,000

25
Q

?????? MC question

A

Epicenter

26
Q

Most servers quakes happen in _______ boundaries

A

Convergent

27
Q

ESSAY would you live in earthquake zone

A

No I wouldn’t because that would mean risking the dangers and loosing my home or maybe my life depending on how servers earthquakes are. And plus I love Pennsylvania

28
Q

T or f Richter scale is based off eyewitness

A

False that’s the mercalli scale