San Diego, known for its beautiful coastline and mild weather, is not immune to the risks posed by earthquakes. Situated near significant fault lines, the city and its residents face the ever-present threat of seismic activity. According to the Southern California Earthquake Center, there is a 60% chance of a 6.7 magnitude or greater earthquake occurring in Southern California. Yet, surveys reveal that only one in four households in the Western United States is prepared for such an emergency. As we look toward February 2025, now is the time to focus on earthquake preparedness and the crucial role seismic retrofitting plays in safeguarding homes and businesses.

The Reality of Earthquakes in Southern California

Earthquakes occur daily, with about 35 recorded worldwide each day—amounting to 12,000 to 14,000 annually. In the United States, 45 states and territories are at high to moderate risk. San Diego’s location makes it particularly vulnerable, as fault lines such as the Rose Canyon Fault run near densely populated areas. Preparing for an earthquake is not just advisable; it is essential.

Steps to Prepare Before an Earthquake

Preparing for an earthquake involves planning, securing your environment, and educating yourself and your family. Here are actionable steps San Diego residents and property owners can take:

Create a Family Disaster Plan

• Identify safe spots in your home, such as under sturdy tables or in small interior rooms.
• Designate an out-of-area contact to coordinate family communication.
• Ensure every family member knows essential phone numbers and addresses.

Assemble Emergency Kits

Prepare kits for your home, car, and workplace, including:

• Flashlights and extra batteries
• Portable radios
• A three-day supply of water and non-perishable food
• Medications
• Extra clothing and sturdy shoes
• First aid supplies and manuals
• An extra set of keys and copies of important documents

Secure Your Home

• Bolt heavy furniture, such as bookcases and cabinets, to wall studs.
• Install latches on cupboards to prevent contents from spilling.
• Remove heavy items hanging above beds.
• Strap water heaters to wall studs to prevent tipping.

Seismic Retrofitting: A Vital Investment

For property owners in San Diego, seismic retrofitting is a critical measure to reduce earthquake damage. Older buildings, especially those constructed before modern seismic codes, are at significant risk during an earthquake. Soft-story buildings, characterized by open ground floors used for parking or commercial spaces, are particularly vulnerable to collapse.

Retrofitting involves strengthening a building’s foundation and structural elements to withstand seismic forces. While the initial cost may seem substantial, the long-term benefits include protecting lives, minimizing repair costs, and preserving property values.

What to Do During and After an Earthquake

During an earthquake, the Drop, Cover, and Hold technique can save lives:

• Drop to the ground.
• Cover your head and neck under a sturdy table or desk.
• Hold on to the table or desk to keep it steady.

After the shaking stops:

• Check for injuries and administer first aid if necessary.
• Inspect your property for damage, including gas leaks and structural issues.
• Extinguish small fires promptly.
• Monitor local news for updates and emergency information.
• Be prepared for aftershocks and continue to use the Drop, Cover, and Hold method when they occur.

Building a Culture of Preparedness

In a region as seismically active as San Diego, earthquake preparedness must become a collective responsibility. Property owners, local governments, and residents all play a role in building resilient communities. By taking proactive steps today, we can reduce the impact of future earthquakes and ensure the safety of our loved ones and neighbors.

Sources:

• City of San Diego Fire-Rescue Department: Earthquake Preparedness Tips
• Southern California Earthquake Center
• American Red Cross Survey