Japan is one of the most earthquake-prone countries in the world, which makes the seismic resistance of warehouse racks a critical factor for both employee safety and business continuity.

Using non-compliant racks can result in falling goods, structural collapse, and serious injuries during an earthquake—risks that no warehouse can afford to overlook.

This article explains Japan’s seismic standards (JIS Standards) and highlights the key points you need to know when selecting safe racks for your facility.

What Are Japan’s Seismic Standards (JIS Standards)?

To ensure the safety of warehouse equipment, Japan has established JIS Standards (Japanese Industrial Standards) specifically for seismic resistance.

These standards are designed to guarantee rack stability during seismic events, thereby safeguarding both people and operations.

✅ Why JIS Compliance Matters

• Prevents rack collapse and falling goods in an earthquake.
• Protects employees and minimizes accident risks.

⚠️ Risks of Non-Compliance

• Non-standard racks increase the likelihood of severe accidents and operational disruption in the event of seismic activity.

Understanding the Horizontal Seismic Coefficient

One of the most important indicators in seismic rack design is the horizontal seismic coefficient—a measure of how well the rack withstands lateral shaking during an earthquake.

The coefficient is determined by multiple factors, including rack structure, anchoring bolts, and reinforcement systems.

✅ JIS Standard Requirement

• A minimum coefficient of 0.2, equivalent to resistance against a mild intensity 5 earthquake on Japan’s seismic scale.

⚠️ Important Note

• This is only a baseline guideline. Actual seismic performance must be verified through detailed engineering calculations.

The True Purpose of Seismic Design: Time to Evacuate

Seismic design is not intended to make racks indestructible. Instead, its purpose is to buy employees valuable time to evacuate safely.

✅ Operational Guidelines

• In the event of an earthquake, employees should prioritize moving to designated safe zones.

✅ The Role of Seismic-Resistant Racks

• Properly designed racks help prevent immediate collapse, creating the critical window needed for safe evacuation.

Pros and Cons of Seismic Safety Measures

Advantages

• Ensures Employee Safety: Reduces the risk of injuries during earthquakes.
• Enhances Business Continuity: Facilities can resume operations faster post-disaster.
• Builds Trust: Demonstrates a strong commitment to safety for employees and clients.

Disadvantages

• Higher Initial Costs: Seismic-resistant racks require greater upfront investment.
• Ongoing Maintenance: Regular inspections and upkeep are essential to ensure effectiveness.

JIS-Compliant Racks from Logical Company

At Logical Company, we provide racks that meet Japan’s seismic standards and are designed to ensure long-term safety and reliability.

By selecting JIS-compliant racks, you can:
✔️ Optimize warehouse safety.
✔️ Maintain business continuity even after seismic events.
✔️ Operate in Japan with complete peace of mind.

Our expert team is available to provide consultation and tailored recommendations for your facility.

Conclusion

Selecting racks that comply with Japan’s seismic (JIS) standards is not optional—it is essential.

By understanding the horizontal seismic coefficient and the true purpose of seismic design, you can establish a warehouse environment that prioritizes safety, resilience, and efficiency.

👉 Logical Company is here to support your success in the Japanese market with the safest, most reliable racking solutions.