earthquake general

Question 1

what causes earthquakes

Answer 1

when tectonic plates slip causing a release in energy and ground to shake

Question 2

causes for plates slipping

Answer 2

friction
volcanic eruption 
fracking 
nuclear bombs 
magma movement

Question 3

what is a shallow eq

Answer 3

0 -50km

Question 4

what is a mid depth earthquake

Answer 4

50- 300km

Question 5

what is a deep eq

Answer 5

300km plus

Question 6

types of waves

Answer 6

p
s
love
rayleigh

Question 7

s wave type

Answer 7

transvers

Question 8

p wave type

Answer 8

longitudinal

Question 9

what are p waves fastes thru

Answer 9

solids and liquids

Question 10

what are s waves slower thru

Answer 10

solids but very damaging

Question 11

do s or p waves reach surface first

Answer 11

p waves

Question 12

what can s waves travel through

Answer 12

just the mantle and not the core

Question 13

what do p waves travel through

Answer 13

mantle and the core

Question 14

what sort of motion are rayleigh waves

Answer 14

rolling

Question 15

characteristic of love waves

Answer 15

slowest but most damaging

Question 16

what effects impact of eq

Answer 16

location 
foundation material 
depth of focus 
land use 
preparation 
economic status

Question 17

what are the two ways to measure eq

Answer 17

mercalli scale

richter scale

Question 18

features of mercalli intensity scale

Answer 18

place specific 12 point scale

takes into account effects experienced

Question 19

features of richter scale

Answer 19

easy to compare eq and scale is logarithmic

Question 20

japanese eq management

Answer 20

prediction
preparation
prevention
response

Question 21

how do they predict

Answer 21

past records
seismic monitoring
tsunami monitoring system

Question 22

preparation

Answer 22

monthly eq drills
education to raise awaness of risks
annual eq simulations
eq emergency kits 
risk maps and evacuation routes

Question 23

how did the prevent

Answer 23

building regs now to reinforce buildings and shock absorbers 
land use zoning
evacution chutes 
automatic shut of gas valves 
fire proof elecricity line 
tsunami walls

Question 24

repsonse

Answer 24

instant media alerts
coordinated response
defence troops
japan bank support