Earthquake

Question 1

Origin of EQ is ——-

Answer 1

Focus or Hypocentre

Question 2

Point closest to focus on surface is ____

Answer 2

Epicentre

Question 3

Magnitude of EQ measured in ——

Answer 3

Richter scale
log scale
1-10

Question 4

Intensity of EQ measured in ____

Answer 4

Marceli Scale
1-12
Effect on a location

Question 5

Focus of EQ from covergence is —-

Answer 5

Deeper

Far from surface - may show less effect

Question 6

Focus of EQ from divergence is ——

Answer 6

Shallow

Near the surface - may effect more

Question 7

Body waves originate at —-

Answer 7

Focus

Question 8

Surface waves originate at —-

Answer 8

Epicentre

Question 9

P waves are

Answer 9

Longitudinal like pressure/sound wave
Faster
Can travel in s/l/g

Question 10

S waves are

Answer 10

Slower
Transverse like water waves
Can travel only in solid

Question 11

S waves shadow zone due to block by ____

Answer 11

Outer core (liquid)

Beyond 103 deg on either side of epicentre

Wider

Question 12

P wave shadow zone formed during to —-

Answer 12

Deviation by transition of medium (s - l )

103-142 deg on both side of epicentre

Narrower than shadow zone of s-waves

Question 13

Most destructive waves are

Answer 13

Love waves (but depends on conditions)

Question 14

Love waves move

Answer 14

Horizontally
Faster than Rayleigh

Question 15

Rayleigh waves move

Answer 15

Both horizontally and vertically
Slower than Love wave