On January 17, 1994, the Northridge Earthquake, magnitude 6.7, rocked the Los Angeles area causing billions of dollars in damage, thousands of injuries and 60 fatalities - Leaving Cert Geography - Question 2A - 2019
Question 2A
On January 17, 1994, the Northridge Earthquake, magnitude 6.7, rocked the Los Angeles area causing billions of dollars in damage, thousands of injuries and 60 fatali... show full transcript
Worked Solution & Example Answer:On January 17, 1994, the Northridge Earthquake, magnitude 6.7, rocked the Los Angeles area causing billions of dollars in damage, thousands of injuries and 60 fatalities - Leaving Cert Geography - Question 2A - 2019
Step 1
What was the magnitude of the Northridge earthquake in 1994?
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Answer
The magnitude of the Northridge earthquake in 1994 was 6.7.
Step 2
Which of the named Los Angeles urban areas was closest to the earthquake's epicenter?
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Answer
The urban area closest to the earthquake's epicenter was Malibu.
Step 3
How long did it take (in seconds) for the effects of the earthquake to be felt in Ventura?
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It took approximately 10 seconds for the effects of the earthquake to be felt in Ventura.
Step 4
How many kilometres did the seismic waves travel from the epicentre to point X?
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The seismic waves traveled approximately 90 to 105 km from the epicenter to point X.
Step 5
State one negative impact of the earthquake, referred to in the text above.
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One negative impact of the earthquake was the significant number of fatalities that occurred, with 60 reported deaths.
Step 6
Explain briefly one way of making infrastructure earthquake proof.
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One way of making infrastructure earthquake proof is by implementing base isolation techniques, which allow a building to move independently from ground motion during an earthquake, thereby reducing the forces exerted on the structure.
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