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
2011 Zumpango earthquake 2011 Zumpango earthquake The 2011 Zumpango earthquake occurred at with a moment magnitude of 6.5 and a maximum Mercalli intensity of VII ("Very strong"). Its epicenter was located in the city Zumpango, Guerrero, roughly equidistant between the metropolitan areas of Mexico City and Acapulco. The quake was felt in Guerrero, Michoacán, Mexico State, Mexico City and Puebla. Multiple deaths and injuries resulted from the earthquake, although the effects were minimized because the hypocenter was relatively deep at 65 kilometers. The resulting damage was minimal, but during the panic people evacuated buildings in Mexico City. In Mexico City, a little more