GEOLOGY

Detailed explanation-1: -The Valdivia earthquake occurred at 15:11 UTC-4 on 22 May, and affected all of Chile between Talca and Chiloé Island, more than 400, 000 square kilometres (150, 000 sq mi). Coastal villages, such as Toltén, were struck. At Corral, the main port of Valdivia, the water level rose 4 m (13 ft) before it began to recede.

Detailed explanation-2: -The earthquake that struck near Valdivia, Chile, in 1960 was the most powerful temblor in recorded history. The quake left about two million people homeless. On May 22, 1960, the most powerful earthquake in recorded history-magnitude 9.5-struck southern Chile.

Detailed explanation-3: -On May 22, 1960 a great Mw 9.5 earthquake, the largest earthquake ever instrumentally recorded, occurred off the coast of southern Chile. This earthquake generated a tsunami that was destructive not only along the coast of Chile, but also across the Pacific in Hawaii, Japan, and the Philippines.

Detailed explanation-4: -On 3 May, at 19:09 a 6.4 MW earthquake magnitude struck off Biobío, Chile, at the epicenter, at a depth of 20 km (12 mi). The epicenter was 55 km (34 mi) south of Lebu. On 14 July 2010, another 6.5 magnitude earthquake occurred in the area.

Detailed explanation-5: -The earthquake hit at 3:11 pm approximately 100 miles (160 km) off the coast of Chile, parallel to the city of Valdivia. The shock is generally agreed to have had a magnitude of 9.5, though some studies alternately proposed that it may have been 9.4 or 9.6.