1960 Valdivia earthquake
The 1960 Valdivia earthquake and tsunami or the Great Chilean earthquake was the most powerful earthquake ever recorded. Various studies have placed it at 9.4-9.6 on the moment magnitude scale and it lasted approximately 10 minutes. It released almost a quarter of all global seismic energy between 1906 and 2005. Various estimates of the total number of fatalities from the earthquake and tsunamis have been published, ranging between 1,000 and 6,000 killed.
1927 Gulang earthquake
The 1927 Gulang earthquake was a 7.6 magnitude event, which had an epicenter near Gulang, Gansu in the Republic of China. It led to 40,912 deaths and was felt up to 700 km away.
Lassen Peak erupted
One of the largest lava domes on Earth, Lassen Peak is located in the Shasta Cascade region of Northern California, USA. It reaches an elevation of 10,457 ft (3,187 m), standing above the northern Sacramento Valley. On May 22, 1915, a powerful explosive eruption at Lassen Peak devastated nearby areas, and spread volcanic ash as far as 280 mi (450 km) to the east.
Quintinshill rail disaster
The Quintinshill rail disaster was a multi-train rail crash which occurred outside the Quintinshill signal box near Gretna Green in Dumfriesshire, Scotland. The cause of the collision was found to be the neglect of the rules by two signalmen. It resulted in the deaths of over 200 people and remains the worst rail disaster in British history.
1766 Istanbul earthquake
The 1766 Istanbul earthquake was a strong earthquake with epicenter in the eastern part of the Sea of Marmara, in the Çınarcık Basin. The earthquake had an estimated magnitude of 7.1 on the surface wave magnitude scale. The earthquake of 1766 was the last major earthquake to rock Constantinople because of a rupture of the North Anatolian Fault in the Marmara region.