California averages more than 10,000 earthquakes per year. Most are too small to feel. But the state sits on active fault lines — including the San Andreas — that are capable of producing catastrophic events. The Northridge earthquake (1994) killed 57 people and caused $20 billion in damage. The 1989 Loma Prieta quake killed 63. Scientists estimate a major rupture of the southern San Andreas fault could affect 33 million people.
The question is not if. The question is when — and whether you will be ready.
What Makes Earthquake Prep Different
Unlike hurricanes, earthquakes have no warning. No 48-hour notice. No weather radar. You get 0 to 30 seconds of P-wave notification at best — barely enough to drop, cover, and hold on. This means your preparation must be done in advance, completely.
Key differences from other disaster prep:
- Evacuation is rarely the first response. Unlike hurricanes, most earthquake survivors shelter in place. Your home supplies matter more than your go bag initially.
- Infrastructure disruption can be severe. After a major quake, water mains break, gas lines rupture, roads crack, and bridges fail. Plan for 7–14 days of self-sufficiency, not 72 hours.
- Fire is a secondary killer. Ruptured gas lines + broken electrical = fires. Know where your gas shutoff is and how to close it before an earthquake happens.
The California Earthquake Kit
Start with the standard 72-hour foundation and extend it:
Water (Most Critical in California)
Earthquakes break water mains. After the Northridge quake, some LA neighborhoods were without tap water for weeks. Plan for 2 weeks of stored water minimum — 1 gallon per person per day, plus extra for sanitation.
- 55-gallon drum or multiple 5-gallon containers for home storage
- Portable water filter for backup sourcing from streams or water features
- Water purification tablets (kills viruses that filters miss)
Food (2-Week Supply)
- No-cook options for the first 72 hours (gas may be off)
- A camp stove with extra propane once gas shutoff is confirmed safe
- Calorie-dense, shelf-stable food: freeze-dried meals, rice, beans, canned goods with pull tabs
First Aid and Medical
- Trauma-level first aid kit (earthquakes cause crush injuries, lacerations)
- Tourniquet + hemostatic gauze
- 30-day supply of all prescription medications
- Glasses/contacts backup
Tools Specific to Earthquake Response
- Gas shutoff wrench (keep one near your meter — do NOT buy the all-in-one tool that includes a fire hookup wrench; they are not the same)
- Fire extinguisher (ABC-rated, one per floor minimum)
- Work gloves (heavy leather — debris handling)
- Pry bar (for opening jammed doors or debris)
- Dust masks N95+ (demolished structures produce serious particulate)
- Leather-soled shoes stored next to your bed (glass on bare floors after a quake)
Home Hardening Checklist
Much of earthquake safety is preventing secondary injuries from falling objects:
- Strap water heater to wall studs with seismic strapping
- Bolt tall bookshelves and cabinets to wall studs
- Use museum putty or velcro under heavy objects on shelves
- Install child safety latches on kitchen cabinets (prevents broken glass avalanche)
- Know your home's shutoff locations: gas (outside meter), water (main valve), electric (breaker panel)
- Keep shoes + flashlight under every bed (glass on bare floors after a quake is a real injury risk)
Drop, Cover, and Hold On: The Official Guidance Has Changed
The old "doorframe" advice is outdated — modern construction means doorframes are no stronger than any other part of the structure. Current official guidance from ShakeOut and FEMA:
- DROP to your hands and knees immediately
- COVER your head and neck with your arms; if a sturdy table or desk is nearby, shelter under it
- HOLD ON until shaking stops — move with the table if it moves
If there is no table: move to an interior wall away from windows, crouch down, and cover your head. Do NOT run outside during shaking.
After the Quake: The First 24 Hours
- Expect aftershocks — the first 24 hours often bring multiple significant ones
- Check for gas leaks (smell of rotten eggs = evacuate immediately, do not use any electrical switches)
- Do not use elevators — they may be jammed or structural integrity unknown
- Text, do not call — text messages use less network bandwidth and get through when calls cannot
- Check on neighbors, especially elderly or disabled
- Listen to battery-powered radio for official updates (NOAA weather radios receive emergency broadcasts)
→ Build your California earthquake kit with our step-by-step guide
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