{"id":5089,"date":"2026-10-26T15:30:00","date_gmt":"2026-10-26T06:30:00","guid":{"rendered":"https:\/\/www.pro-7.co.jp\/en\/?post_type=disaster-prevention&p=5089"},"modified":"2026-10-05T15:44:42","modified_gmt":"2026-10-05T06:44:42","slug":"long-period-ground-motion-bcp-checklist","status":"publish","type":"disaster-prevention","link":"https:\/\/www.pro-7.co.jp\/en\/disaster-prevention\/long-period-ground-motion-bcp-checklist\/","title":{"rendered":"Long-Period Ground Motion and Business Continuity: What Should Companies Prepare?"},"content":{"rendered":"\n

Earthquake preparedness is often discussed in terms of whether a building can withstand an earthquake. That is an essential question, but it is not the only one businesses need to consider. For companies, the more practical question may be:<\/p>\n\n\n\n

What happens inside the building while and after the earthquake?<\/strong><\/p>\n\n\n\n

This question becomes particularly important when considering long-period ground motion<\/mark>. <\/a>High-rise buildings can experience prolonged movement, and furniture, equipment, storage systems, elevators, and other interior elements may be affected. Even if the main structure remains usable, damage or movement inside the facility can create safety problems and interrupt business operations.<\/p>\n\n\n

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Inside a building in Tokyo (approx. 370km from epicenter) <\/figcaption><\/figure>\n<\/div>\n\n\n

Business Continuity Starts With Physical Risk<\/strong><\/h2>\n\n\n\n

Business continuity planning often focuses on systems, employees, suppliers, data, and communication.<\/p>\n\n\n\n

Physical assets also deserve attention. A business cannot easily continue operating if essential equipment is damaged, access routes are blocked, or employees cannot safely reach critical areas.<\/p>\n\n\n\n

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The Japan Meteorological Agency notes that strong long-period ground motion can cause furniture and fixtures in high-rise buildings to move or overturn and can affect elevator operation. These effects can create both safety and operational problems.<\/p>\n\n\n\n

For example, an overturned cabinet may injure an employee and block a corridor.<\/p>\n\n\n\n

A moved piece of equipment may be damaged and also prevent access to another device.<\/p>\n\n\n\n

An elevator shutdown may make upper-floor equipment difficult to inspect or operate. These are business continuity issues as well as earthquake safety issues.<\/p>\n<\/div>\n\n\n\n

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\"Strong<\/figure>\n<\/div>\n<\/div>\n\n\n\n

Start With a Workplace Walkthrough<\/strong><\/h2>\n\n\n\n

A practical first step is a physical inspection of the workplace. Walk through each area and ask: \u201cIf this floor moved repeatedly for several minutes, what could move, fall, overturn, or become inaccessible?\u201d<\/strong><\/p>\n\n\n\n

This question is useful because long-period ground motion is not simply a single sudden impact. Prolonged movement can cause repeated displacement.<\/p>\n\n\n\n

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The inspection should cover:<\/p>\n\n\n\n