1923 Great Kantō earthquake collapsed due to urbanization. The 1923 earthquake led to record-high morbidity due to unsanitary conditions following the earthquake, and it prompted the establishment of antityphoid measures and the building of urban infrastructure. The Honda Point Disaster on the United States west coast, in which seven US Navy destroyers ran aground and 23 lives were lost, has been attributed to navigational errors caused by unusual currents set up by the earthquake in Japan. Beginning in 1960, every September 1 is designated as Disaster Prevention Day to commemorate the earthquake and remind people of the importance of preparedness, as August and September
Kanto (music) usually divided into two periods. The division, particulariy in terms of musical structure, is clear between the early kanto (1900s - 1923) and the kanto of the Post-Republican period (especially after the mid-1930s). It is further possible to identify two styles within the early period: Galata and Direklerarası (after the neighbourhoods of Old Istanbul). The early period kanto tradition was nourished in Istanbul. The same was also true in the Post-Republican period. The city's large and diverse population provided the themes that were the mainstay of kanto. Kanto was heavily influenced by musical theatre, Balkan and Byzantine or Anatolian music