Understanding Earthquake Intensity and Magnitude

What are the two main aspects of earthquakes that help us understand their impact?

• Intensity and magnitude

• Depth and duration

• Location and frequency

• Speed and direction

Which scale is used to express earthquake intensity?

• Richter scale

• Modified Mercalli Intensity scale

• Seismic scale

• Magnitude scale

What factors can influence the intensity of an earthquake?

• Population density and land use

• Time of day and weather

• Depth, distance from epicenter, local geology, and building construction

• Magnitude and duration

How is earthquake magnitude measured?

• Using the Mercalli scale

• Using the RoR scale, which is logarithmic

• By the number of aftershocks

• By the speed of seismic waves

Why is understanding earthquake magnitude important for safety?

• It determines the color of emergency alerts

• It influences the weather patterns

• It aids in designing seismically resilient buildings and emergency plans

• It helps predict the exact time of an earthquake