What are they?

Earthquake: includes ground rupture/faulting, liquefaction, strong shaking, and tsunami
Mass wasting: includes seismically-triggered landslides, debris flows, mud flows, and rock falls
Flooding

How serious a threat are any of these hazards?
How often does it/do they occur?
Is anything being done to prevent damage to your residence if this hazard were to occur there?

If so, what are the preventions?
If not, what could be done? How can you further prepare?