Earthquake Risk Analysis and Seismic Microzonation

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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?

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

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

CO2 fire extinguisher (D) Signup and view all the answers

What is the focus of earthquake prediction programs?

Monitoring seismic activity along major faults (A) Signup and view all the answers

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

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

What is the main objective of earthquake preparedness?

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

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

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

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

All of the above (D) Signup and view all the answers

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

To avoid injury from broken glass (C) Signup and view all the answers

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

To coordinate emergency responses (A) Signup and view all the answers

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

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

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

Open a window and then quickly leave the premises, shutting off the gas at the outside main meter (D) 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?

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

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

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

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

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

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

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