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
June 2011 Christchurch earthquake charities, including NZ$40,000 (US$32,000) to both the Red Cross Christchurch earthquake appeal and the Canterbury Earthquake Appeal Salvation Army funds. At Westpac Bank, a public donation account was opened in order to provide financial assistance for earthquake victims. Chief executives from the Commonwealth Bank sponsored an exclusive dinner in Sydney to raise money for rebuilding costs; an initial A$700,000 (US$660,000) was allocated prior to the event, with entry costs of A$10,000 (US$9,500) per ticket. June 2011 Christchurch earthquake The June 2011 Christchurch earthquake was a shallow magnitude 6.3 M earthquake that occurred on 13 June 2011 at 14:20 NZST (02:20