How to Prepare for an Earthquake - Complete Safety Guide

Introduction: Why Earthquake Preparedness Can Save Your Life

Every year, the U.S. Geological Survey detects roughly 20,000 earthquakes worldwide, and about 16 of those register at magnitude 7.0 or greater. In 2023 alone, devastating quakes in Turkey, Morocco, and Afghanistan killed tens of thousands and displaced millions. The hard truth is this: earthquakes strike without warning, and the difference between survival and catastrophe often comes down to what you did before the ground started shaking.

This guide is written for homeowners, renters, families, and individuals living in seismically active regions—or anyone who wants a realistic, actionable plan. Whether you live along the Pacific Ring of Fire, near the New Madrid Seismic Zone, or in an area that rarely feels tremors, the principles here apply universally. Earthquakes don’t respect geography the way we expect; the 2011 Virginia earthquake was felt across 22 states and into Canada.

By the time you finish reading, you will have a concrete preparedness plan: a secured home, a stocked emergency kit, a family communication strategy, and the muscle memory to react correctly during those first critical seconds of shaking. Most of the steps take a single weekend to complete. A few require ongoing maintenance—checking supplies every six months, for instance—but the upfront investment is modest in both time and money. Expect to spend between $150 and $400 on supplies, and roughly 4 to 6 hours on home preparation.

Let’s get started. The next earthquake isn’t a question of if—it’s when.

Prerequisites: What You Need Before You Begin

• Basic tools: A drill, screwdriver set, adjustable wrench, stud finder, and measuring tape.
• Budget: $150–$400 for emergency supplies (varies by family size). Securing furniture adds $30–$80 in hardware.
• Time: Plan for one full weekend (Saturday for home securing, Sunday for kit assembly and family drills).
• Knowledge: Know your local seismic zone. Check the USGS Earthquake Hazards Program website for your region’s risk level and fault maps.
• Documents: Gather insurance policies, identification, and medical records—you’ll need copies for your emergency kit.

Step-by-Step Earthquake Preparation Instructions

Step 1: Assess Your Home’s Structural Vulnerabilities

Walk through every room and identify what could fall, break, or block an exit during violent shaking. Tall bookshelves, mounted TVs, water heaters, and heavy mirrors are the most common hazards. Check your foundation for visible cracks—anything wider than 1/4 inch warrants a professional inspection. If your home was built before 1980 and sits on a raised foundation, it may not be bolted to the foundation at all, which means it could slide off during a quake.

Tip: Take photos of each room as you go. This serves double duty: it documents your belongings for insurance purposes and creates a visual checklist for securing items.

Step 2: Secure Heavy Furniture and Appliances

Use L-brackets or furniture straps to anchor bookshelves, dressers, and cabinets to wall studs. Strap your water heater with earthquake-rated metal strapping (required by code in California and several other states). Apply museum putty or adhesive strips under TVs, computers, and decorative objects on shelves. Move heavy items to lower shelves.

Specific example: A standard 40-gallon water heater weighs over 300 pounds when full. During the 1994 Northridge earthquake, unsecured water heaters were responsible for numerous gas leaks and house fires. Two steel straps and four lag bolts—about $15 in materials—prevent this entirely.

Caution: Don’t anchor into drywall alone. Always locate studs with a stud finder. Drywall anchors will rip out during strong shaking.

Step 3: Identify Safe Spots in Every Room

The safest position during an earthquake is under a sturdy desk or table, away from windows, mirrors, and heavy objects that could fall. Walk through each room and identify the best “Drop, Cover, and Hold On” spot. In the kitchen, it’s usually away from the refrigerator and stove. In the bedroom, next to the bed (not under a heavy headboard) is generally safest. In hallways, crouch against an interior wall.

Myth busted: Standing in a doorway is not safer than taking cover under a table. This advice dates from adobe construction; in modern framed buildings, doorways offer no special protection and leave you exposed to swinging doors and falling debris.

Step 4: Build a 72-Hour Emergency Kit

Emergency responders consistently advise preparing for at least 72 hours of self-sufficiency. In a major earthquake, utilities and supply chains can be disrupted for a week or longer. Here’s what your kit should contain:

• Water: One gallon per person per day (minimum 3 days = 3 gallons per person). A family of four needs 12 gallons minimum.
• Food: Non-perishable, high-calorie items. Canned goods (with a manual can opener), energy bars, dried fruit, peanut butter, and crackers. Aim for 2,000 calories per person per day.
• First aid kit: Bandages, antiseptic wipes, pain relievers, prescription medications (30-day supply), tweezers, medical tape, and any needed medical devices.
• Flashlight and extra batteries: LED headlamps are ideal because they free your hands. Avoid candles—gas leaks after earthquakes make open flames dangerous.
• Battery-powered or hand-crank radio: NOAA Weather Radio frequencies carry emergency broadcasts.
• Dust masks, plastic sheeting, and duct tape: For filtering contaminated air and sealing a room if needed.
• Sanitation supplies: Garbage bags, plastic ties, moist towelettes, and a portable toilet or bucket with a seat.
• Wrench and pliers: To turn off gas and water valves.
• Local maps: GPS may be unavailable. Paper maps of your area with marked evacuation routes are essential.
• Phone charger: A portable battery pack (10,000mAh minimum) or a solar charger.
• Cash: ATMs and card readers won’t work without power. Keep $200–$500 in small bills.
• Copies of important documents: IDs, insurance policies, bank account numbers, medical records—sealed in a waterproof bag.

Tip: Store kits in two locations—one inside (hall closet or under a bed) and one outside (garage or car trunk) in case your home is inaccessible.

Step 5: Create a Family Communication Plan

During an earthquake, cell towers get overloaded within minutes. Text messages are more likely to get through than voice calls because they use less bandwidth. Establish these three things with every member of your household:

• Out-of-area contact: Designate a relative or friend in a different state as your central point of contact. Everyone checks in with this person.
• Meeting locations: Choose two—one near your home (a neighbor’s driveway, a specific tree) and one farther away (a school, community center, or park) in case your neighborhood is evacuated.
• ICE contacts: Program “In Case of Emergency” numbers into every family member’s phone. Write them on a card kept in wallets and backpacks too.

Practice: Run through the plan at least twice a year. Quiz your kids on the out-of-area contact’s phone number.

Step 6: Learn How to Shut Off Utilities

After an earthquake, gas leaks and electrical shorts cause fires and explosions. Every adult in the household should know how to:

• Turn off the gas: Locate the main gas shutoff valve (usually near the meter, outside). Use a 12-inch adjustable wrench to turn the valve a quarter-turn so the handle is perpendicular to the pipe. Only shut off gas if you smell it, hear it, or see damage to the line. Once off, only the gas company should turn it back on.
• Turn off electricity: Find your main breaker panel. Flip the main breaker to “off” if you see sparking, frayed wires, or smell burning.
• Turn off water: Locate the main water shutoff valve (usually near the street or where the main line enters your house). Turn it clockwise to close.

Tip: Tag each valve with a bright label. In the chaos after an earthquake, you don’t want to search.

Step 7: Earthquake-Proof Your Bedroom

Many significant earthquakes strike at night—the 1994 Northridge quake hit at 4:31 AM. Your bedroom deserves special attention. Keep sturdy shoes and a flashlight under your bed (broken glass is one of the most common post-earthquake injuries). Don’t hang heavy framed art or mirrors above the headboard. Secure dresser drawers with childproof latches so they don’t fly open and dump contents during shaking.

If you live in a high-risk zone, consider an earthquake early warning app like MyShake (developed by UC Berkeley) or ShakeAlert. These apps can provide 5 to 20 seconds of warning—enough time to get to a safe spot.

Step 8: Practice Drop, Cover, and Hold On

This is the single most important protective action during an earthquake. It should be an automatic reflex:

• DROP to your hands and knees. This prevents being knocked down and lets you crawl to shelter.
• COVER your head and neck with one arm. Crawl under a sturdy desk or table if one is nearby.
• HOLD ON to the table leg with one hand, ready to move with it if it shifts.

If no table is available, crawl to an interior wall, cover your head and neck, and curl into a ball. Stay away from windows, exterior walls, and anything that could fall on you.

Practice regularly: The Great ShakeOut (held annually on the third Thursday of October) is a global earthquake drill. Participate with your family or workplace. Muscle memory saves lives when adrenaline erases rational thought.

Step 9: Prepare Your Vehicle and Workplace

Keep a smaller emergency kit in your car: water bottles, energy bars, a blanket, a first aid kit, a flashlight, comfortable walking shoes, and a paper map. If an earthquake hits while you’re driving, pull over away from overpasses, bridges, power lines, and buildings. Stay in the car until the shaking stops.

At work, know the building’s evacuation plan. Keep a pair of walking shoes at your desk—you may need to walk miles to get home if public transit shuts down. Store a day’s worth of water and snacks in your desk drawer.

Step 10: Review and Refresh Every Six Months

Earthquake preparedness is not a one-time task. Set a recurring calendar reminder for January and July to:

• Check expiration dates on food, water, and medications in your kit.
• Replace batteries in flashlights and radios.
• Update documents (new insurance policy, changed phone numbers).
• Run a family drill—practice Drop, Cover, and Hold On, and test your communication plan.
• Re-check furniture anchors and water heater straps for looseness.

Specific tip: Water stored in commercial sealed bottles lasts 1 to 2 years. Water you bottle yourself should be replaced every 6 months. Label containers with the date you filled them.

Common Mistakes to Avoid

1. Storing All Supplies in One Location

If your home is severely damaged or you can’t re-enter, a single kit stored in the basement does you no good. Instead, split your supplies: keep one kit inside and a second in the garage, shed, or car trunk. Some families also keep a small kit at a trusted neighbor’s house.

2. Ignoring Structural Retrofitting

Many homeowners secure small items but never address the biggest risk: an unbolted foundation. If your home was built before 1980, hire a licensed contractor to evaluate whether it needs cripple wall bracing or foundation bolting. In California, the Earthquake Brace + Bolt program offers grants up to $3,000 for qualifying retrofits.

3. Running Outside During Shaking

The instinct to flee is strong, but running outside during an earthquake puts you directly in the path of falling glass, bricks, power lines, and debris. Instead, Drop, Cover, and Hold On indoors. Only go outside after the shaking stops, and then move carefully to an open area away from buildings.

4. Forgetting About After-Shocks

The initial quake is rarely the end. Aftershocks can be nearly as strong as the main event and continue for days or weeks. The 2011 Christchurch earthquake (magnitude 6.3) was actually an aftershock of a larger quake five months earlier. Stay alert, keep your emergency kit accessible, and don’t re-enter damaged buildings even if they appear stable.

5. Neglecting Emotional Preparedness

Earthquakes are psychologically traumatic, especially for children. Instead of avoiding the topic, talk openly with your family about what an earthquake feels like, what will happen, and what each person’s role is. Children who have practiced drills and understand the plan experience less anxiety during an actual event. Consider including comfort items—a stuffed animal, a favorite book—in your child’s emergency kit.

Frequently Asked Questions

How long does earthquake shaking typically last?

Most earthquakes produce strong shaking for 10 to 30 seconds. Major earthquakes (magnitude 7.0+) can shake for 1 to 3 minutes. The 2011 Tohoku earthquake in Japan produced nearly 6 minutes of shaking. Even 15 seconds of violent shaking can cause massive damage, so don’t wait for it to “feel big” before taking cover—drop immediately at the first sign of shaking.

Should I buy earthquake insurance?

Standard homeowner’s insurance does not cover earthquake damage. In California, the California Earthquake Authority (CEA) offers policies with premiums ranging from $800 to $5,000+ per year depending on your home’s age, construction type, and proximity to fault lines. Deductibles are typically 5% to 25% of the dwelling coverage. If your home’s replacement cost is $400,000 and your deductible is 15%, you’d pay $60,000 out of pocket before insurance kicks in. Evaluate whether your savings could absorb that loss—if not, earthquake insurance is worth serious consideration.

Can animals predict earthquakes?

There is no reliable scientific evidence that animals can predict earthquakes in a useful, consistent way. Some studies suggest animals may react to P-waves (the faster, less destructive seismic waves) seconds before the stronger S-waves arrive, but this isn’t “prediction”—it’s reaction. Don’t rely on pet behavior as a warning system. Use technology: earthquake early warning apps can provide seconds to tens of seconds of advance notice based on seismometer data.

What should I do if I’m trapped under debris?

Cover your mouth and nose with a cloth to filter dust. Do not shout—you’ll inhale dangerous particles. Instead, tap on a pipe or wall at regular intervals, or use a whistle if you have one (keeping a whistle on your keychain is a smart, inexpensive precaution). Conserve your energy. Rescuers use sensitive listening devices and trained dogs; they are methodical and thorough. Stay calm and signal periodically.

How do I know if my building is safe to re-enter after an earthquake?

Do not re-enter until the building has been inspected by a structural engineer or building inspector. Look for obvious signs of danger from the outside: leaning walls, shifted foundation, large cracks, broken gas lines, or sagging roof sections. After the 1989 Loma Prieta earthquake, buildings were tagged with green (inspected, no restriction), yellow (restricted use), or red (unsafe). Wait for an official assessment before going back inside.

Summary and Next Steps

• Assess and secure your home: bolt heavy furniture, strap the water heater, and identify safe spots in every room.
• Build a 72-hour kit with water (1 gallon/person/day), food, first aid, flashlights, cash, and document copies. Store kits in two separate locations.
• Establish a family communication plan with an out-of-area contact, two meeting locations, and practiced procedures.
• Learn to shut off utilities—gas, electricity, and water—and label every valve.
• Practice Drop, Cover, and Hold On until it becomes instinct. Participate in the annual Great ShakeOut drill.
• Review and refresh supplies and plans every six months.

Now that your foundation is set, consider these next-level steps:

• Get a structural assessment of your home, especially if it was built before 1980.
• Take a CERT course (Community Emergency Response Team)—free training offered by FEMA in most communities that teaches basic disaster response skills.
• Talk to your neighbors. After a major earthquake, your neighbors are your first responders. Organize a block-level plan: who has medical training, who has tools, where will you meet.
• Review your insurance coverage and consider adding earthquake-specific policies.
• Download ShakeAlert or MyShake for real-time earthquake early warnings on your phone.