Volcanic Disaster Prevention Day

What Is Volcanic Disaster Prevention Day?

August 26th is "Volcanic Disaster Prevention Day" in Japan, an officially designated national observance established in 2023 alongside a revision to the Active Volcanoes Countermeasures Special Act.

A Date Marking Japan's First Volcano Observatory

This anniversary's date is tied to an important milestone in the history of volcano monitoring in Japan.

• The date's origin: tied to August 26, 1911, when Japan's first volcano observatory was established on Mt. Asama, spanning Nagano and Gunma Prefectures
• Why it was established: formally designated by law through a revision of the Active Volcanoes Countermeasures Special Act, aiming to raise public understanding of and interest in volcanic disaster prevention
• Japan's volcanic landscape: Japan is home to 111 active volcanoes, making it one of the world's most volcanically active nations, where everyday preparedness is essential

Everyday Habits That Help You Prepare for Volcanic Disasters

Volcanic eruptions, like earthquakes, are among the natural disasters hardest to predict. Checking hazard maps before climbing a mountain and preparing for volcanic ash or falling rocks are the kinds of everyday knowledge and preparation that keep you safe when it matters most.

Tips for Marking This Day

• Learn about volcanoes near where you live or plan to travel
• Check how to read the Japan Meteorological Agency's eruption warning levels
• Learn about volcanic disaster gear to bring when hiking or traveling
• Learn about the history of past volcanic disasters

A Small Step of Preparation Can Save a Life When It Matters Most

Living alongside volcanoes as Japan does, preparing with accurate knowledge is an important habit for everyone. Let August 26th be a chance to deepen your understanding of the volcanoes near you and think about disaster preparedness.