Name:
Pd.
Date:
How the Earth Was Made: The San Andreas Fault
While watching the movie video, answer the follow questions.
#
Question
1 When the earthquake hit San Francisco in 1906,
besides the obvious building problems, what was
the other danger that the people faced?
2 What was the San Andreas fault named after?
3
Why is Mussel Rock important?
4
What is the process called where the Pacific
plate was diving under the North American
plate?
How long is the San Andreas fault?
5
6
7
How long have earthquakes been occurring
along the San Andreas?
What is the significance of the altered path of
the Carrizo Creek?
8
How much has the creek moved?
9
Which town along the fault has never had an
earthquake?
Why is Parkfield, CA so important?
10
11
Why is serpentenite an important rock where
plates move?
12
Why is the data collected in the Coachella Valley
so important?
13
How long has it been since there was a large
earthquake in the Coachella Valley?
About how many people live in the earthquake
prone areas in California?
14
15
How many people died in the Northridge
earthquake?
16
What was the magnitude of the 1906
earthquake in San Francisco?
To what is the shock wave produced by an
earthquake compared?
17
Answer
Name:
KEY
Pd.
Date:
While watching the movie video, answer the follow questions.
#
Question
Answer
1 When the earthquake hit San Francisco in 1906,
fires
besides the obvious building problems, what was
the other danger that the people faced?
2 What was the San Andreas fault named after?
a lake – Laguna de San Andreas
3
Why is Mussel Rock important?
It marks the spot where the fault comes back on land after
being in the sea. It also exposes rock from 2 different
plates.
4
What is the process called where the Pacific
plate was diving under the North American
plate?
How long is the San Andreas fault?
subduction
How long have earthquakes been occurring
along the San Andreas?
What is the significance of the altered path of
the Carrizo Creek?
thousands of years
8
How much has the creek moved?
1 inch per year
9
Which town along the fault has never had an
earthquake?
Why is Parkfield, CA so important?
Hollister
11
Why is serpentenite an important rock where
plates move?
it’s soft (like talc so it moves easily), allowing the plates to
move gently without major jolting motions
12
Why is the data collected in the Coachella Valley
so important?
very regular earthquakes
13
How long has it been since there was a large
earthquake in the Coachella Valley?
About how many people live in the earthquake
prone areas in California?
300 years
15
How many people died in the Northridge
earthquake?
72
16
What was the magnitude of the 1906
earthquake in San Francisco?
To what is the shock wave produced by an
earthquake compared?
7.6
5
6
7
10
14
17
800 miles
it crossed the fault and shifted
earthquakes occur regularly allowing scientists to study the
movement along the fault
11 million
sonic boom