earthquakes & tsunamis

Question 1

what is the first wave to arrive

Answer 1

p wave, or primary wave

Question 2

what is the second wave to arrive

Answer 2

s wave, or secondary wave

Question 3

what wave moves kind of like a snake

Answer 3

secondary wave, or s wave

Question 4

what wave moves like a accordian

Answer 4

primary wave, or p wave

Question 5

what is the modified mercali scale

Answer 5

this scale is the rating of the earthquake’s force by nearby people’s accounts

Question 6

what is the richter scale

Answer 6

this scale is the rating assigned to a earthquake based on seismic waves’ height/size

Question 7

what is the moment magnitude scale

Answer 7

this scale is a rating assigned to the total energy released during a earthquake

Question 8

what is the center of the earthquake (underground)

Answer 8

The focus

Question 9

what is the center of the earthquake (surface)

Answer 9

The epicenter

Question 10

where do earthquakes often happen

Answer 10

The ring of fire

Question 11

what is the device used to monitor earthquakes called

Answer 11

A seismograph

Question 12

what does a seismograph produce

Answer 12

A seismogram

Question 13

what is stress

Answer 13

any form of a force that acts on rock to change its shape or volume

Question 14

what is tension

Answer 14

stress that stretches rock so that it becomes thinner in the middle and thicker on the ends

Question 15

what is compression

Answer 15

stress that squeezes rock until it breaks or folds

Question 16

what is shearing

Answer 16

stress that is when tectonic plates move in opposite directions against each other

Question 17

what is a plateau

Answer 17

a large landform that is tall and has a decently leveled surface

Question 18

where are tsunamis created

Answer 18

they are created at tectonic plate convergent boundaries, where subduction occurs