Earthquake Risk Analysis and Seismic Microzonation
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Questions and Answers

What was the primary cause of destruction in the San Francisco earthquake of 1906?

  • Landslides and rock falls
  • Collapsing buildings
  • Flooding from earthquake-related hazards
  • Fires started by cut gas and electrical lines (correct)

What is the main goal of seismic microzonation?

  • To identify areas prone to earthquake-related flooding
  • To predict the exact time and location of earthquakes
  • To develop and enforce simple building codes for rural areas
  • To divide a region into zones based on geological and geophysical characteristics (correct)

What is a key challenge in making long-term earthquake predictions?

  • Lack of data on earthquake-prone areas
  • Inability to monitor seismic activity in real-time
  • Limited resources for building earthquake-resistant structures
  • Insufficient understanding of how and where earthquakes occur (correct)

What is a recommended remedial measure for earthquake risk management?

<p>Increasing public awareness about hazard risk management (D)</p> Signup and view all the answers

What type of fire extinguisher is rated for flammable liquids and gases?

<p>CO2 fire extinguisher (D)</p> Signup and view all the answers

What is the focus of earthquake prediction programs?

<p>Monitoring seismic activity along major faults (A)</p> Signup and view all the answers

What is the primary purpose of microzonation in relation to earthquakes?

<p>To provide a basis for site-specific risk analysis (C)</p> Signup and view all the answers

What is the main objective of earthquake preparedness?

<p>To prepare individuals and communities for significant earthquakes (C)</p> Signup and view all the answers

What is the recommended action to take during an earthquake if you are inside a building?

<p>Kneel under a sturdy table or desk (D)</p> Signup and view all the answers

What is the primary factor in determining the amplification factor for seismic microzonation?

<p>All of the above (D)</p> Signup and view all the answers

Why is it recommended to face away from windows during an earthquake?

<p>To avoid injury from broken glass (C)</p> Signup and view all the answers

What is the purpose of response doctrines for state and local government emergency services?

<p>To coordinate emergency responses (A)</p> Signup and view all the answers

What is the correct action to take if you are outside during an earthquake?

<p>Move into the open, away from buildings, and kneel or sit on the ground (D)</p> Signup and view all the answers

What should you do if you smell gas or hear a hissing noise during an earthquake?

<p>Open a window and then quickly leave the premises, shutting off the gas at the outside main meter (D)</p> Signup and view all the answers

What is the correct position to take if you're inside and don't have a 'shelter' to hang on to during an earthquake?

<p>Clasp your hands on the back of your neck to protect your face (B)</p> Signup and view all the answers

When is it safe to get up and help others after an earthquake?

<p>Once the shaking has stopped and you've looked for hazards (C)</p> Signup and view all the answers

What should you do if you have a small fire that can be put out during an earthquake?

<p>Try to put it out with a fire extinguisher (D)</p> Signup and view all the answers

Under what conditions should you evacuate a building after an earthquake?

<p>If there's a fire, structural damage, a gas leak, or a hazardous materials spill (B)</p> Signup and view all the answers

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