The Great Kanto Earthquake of 1923 remains the deadliest disaster in modern Japanese history. More than 100,000 people died in the cities of Tokyo and Yokohama as a magnitude 7.9 quake shook the city triggering huge fires that spread across older wooden neighbourhoods including Honjo in the capital Tokyo. However this dark period in Japan's past gave rise to a new culture of disaster preparedness that continues to this day.