What earthquake hazards exist in high risk states?
High risk states have known active fault systems that produce periodic moderate to strong earthquakes. These may include intraplate faults, extensions of major fault systems, or regions with historical seismicity. Utah, Nevada, and Hawaii fall into this category, each with distinct seismic sources.
How frequently do earthquakes occur in high risk states?
High risk states typically experience felt earthquakes (M3.0+) several times per month and potentially damaging events (M5.0+) every few years. The frequency varies by specific region within the state.
What building codes apply in high risk earthquake states?
High risk states generally adopt the International Building Code (IBC) with seismic provisions requiring structures to withstand expected ground motions. Newer buildings incorporate base isolation, reinforced concrete, and flexible steel framing. Older structures may need retrofitting.
Is earthquake insurance necessary in a high risk state?
Earthquake insurance is highly recommended in high risk states. While not legally required, the financial risk from earthquake damage can be devastating. Evaluate your specific location relative to known faults and review policy options from both private insurers and state programs.
What should I do during an earthquake in a high risk area?
Drop to your hands and knees, take Cover under a sturdy desk or table, and Hold On until the shaking stops. Stay away from windows, exterior walls, and heavy objects that could fall. If outdoors, move to an open area away from buildings. If driving, pull over safely and stay in your vehicle.