Earthquake Insurance
Separate coverage for property damage caused by earthquake and earth movement, excluded by standard commercial property policies.
What It Is
Earthquake insurance covers direct physical damage to buildings and contents caused by earthquake, earth movement, volcanic eruption, landslide, mudslide, and similar earth movement events. Like flood, earthquake damage is specifically excluded from standard commercial property policies and must be purchased separately or added by endorsement.
Earthquake insurance for commercial properties is typically written with percentage deductibles—usually 5% to 15% of the building's insured value—rather than flat dollar deductibles. This means a $5M building with a 10% earthquake deductible has a $500,000 deductible for earthquake losses. The high deductibles reflect the catastrophic nature of earthquake losses.
In California, earthquake insurance is often the most expensive component of a commercial property program. Rates vary dramatically based on construction type (wood frame vs. unreinforced masonry), soil conditions, proximity to fault lines, and building age. Seismic retrofitting can significantly reduce earthquake insurance premiums.
Why It Matters for Brokers
Brokers in seismically active areas must proactively discuss earthquake coverage with every commercial property client. Even in areas not traditionally associated with earthquakes, seismic activity can occur—the New Madrid seismic zone affects much of the central United States, and the 2011 Virginia earthquake caused damage throughout the East Coast. Documenting the earthquake coverage discussion is essential for E&O protection.
Real-World Example
A warehouse in Los Angeles valued at $6.5M carries earthquake coverage with a 10% deductible ($650,000) at an annual premium of $42,000. A magnitude 6.2 earthquake causes $2.1M in structural damage. The insurer pays $2.1M minus the $650,000 deductible = $1.45M. Without earthquake insurance, the insured absorbs the entire $2.1M. While the deductible is steep, the insured avoids a potentially business-ending uninsured loss.
Common Mistakes
- 1Not offering earthquake coverage in areas outside California, Oregon, and Washington—seismic risk exists in many states including Tennessee, Missouri, South Carolina, and Utah.
- 2Failing to explain percentage-based deductibles to clients who expect flat dollar deductibles, leading to claim-time shock when the 10% deductible on a $5M building is $500,000.
- 3Not exploring seismic retrofitting options that can reduce earthquake insurance premiums by 15-30% and improve the building's survivability.
How brokerageaudit.com Handles This
brokerageaudit.com's Policy Checker identifies seismic risk based on the property's geocoded location and USGS seismic hazard data. Properties in moderate-to-high seismic zones without earthquake coverage trigger an alert with the estimated maximum probable loss. The system documents whether earthquake coverage was offered, accepted, or declined, creating an E&O protection record for the broker.