1. What is the Earthquake Intensity Equation?

The Earthquake Intensity Equation estimates the intensity of shaking at a given distance from an earthquake's epicenter. It accounts for the earthquake's magnitude and how the energy dissipates with distance.

2. How Does the Calculator Work?

The calculator uses the intensity equation:

Where:

• \( Magnitude \) — Earthquake magnitude (Richter scale)
• \( Distance \) — Distance from epicenter in kilometers
• \( Factor \) — Attenuation factor (typically 1.0)

Explanation: The equation accounts for logarithmic decay of seismic waves as they travel through the Earth's crust.

3. Importance of Intensity Calculation

Details: Intensity calculations help predict potential damage at different locations, inform emergency preparedness, and guide building code requirements.

4. Using the Calculator

Tips: Enter magnitude (Richter scale), distance from epicenter in km, and attenuation factor (typically 1.0). All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between magnitude and intensity?
A: Magnitude measures energy released at the source, while intensity measures shaking strength at a particular location.

Q2: What are typical intensity values?
A: Intensity values typically range from 1 (barely felt) to 10+ (extreme shaking causing total destruction).

Q3: How does distance affect intensity?
A: Intensity decreases logarithmically with distance due to energy dispersion and absorption.

Q4: What factors influence the attenuation factor?
A: Local geology, wave propagation path, and seismic wave frequency affect the factor value.

Q5: Can this predict exact damage levels?
A: No, this provides an estimate - actual damage depends on building construction, soil conditions, and other factors.