1. Seismology

Hazard Analysis — Quiz

Test your understanding of hazard analysis with 5 practice questions.

Practice Questions

Question 1

In the context of seismic hazard analysis, what is the primary distinction between 'aleatory uncertainty' and 'epistemic uncertainty' in ground motion prediction?

Question 2

A seismic hazard curve for a specific site shows the annual frequency of exceedance for various levels of ground motion intensity. If the curve indicates an annual frequency of exceedance of $5 \times 10^{-4}$ for a Peak Ground Acceleration (PGA) of $0.3g$, what is the approximate return period for this PGA level?

Question 3

Consider a fault segment characterized by a long-term slip rate of $5 \text{ mm/year}$ and an average earthquake rupture displacement of $2 \text{ meters}$. If the fault is assumed to behave according to a characteristic earthquake model, what is the approximate recurrence interval for earthquakes on this segment?

Question 4

In the context of Probabilistic Seismic Hazard Analysis (PSHA), the 'logic tree' approach is primarily used to address which of the following challenges?

Question 5

Which of the following ground motion parameters is most directly correlated with the potential for damage to flexible, long-period structures (e.g., tall buildings)?