1 Valdivia Earthquake, ChileThe 1960 Valdivia Earthquake is the biggest temblor ever recorded in history, with an estimated magnitude of 9.5. It occurred on 27th March at around 3.11 PM. The quake lasted for 10 minutes and killed 1655 human lives and responsible for the injury of more than 2000 people. The resulting tsunami affected southern Chile, Hawaii, Japan, the Philippines, eastern New Zealand, southeast Australia and the Aleutian Islands.
2 Alaskan Earthquake, Alaska1964 Alaskan earthquake is the 2nd most powerful temblor ever recorded by the seismograph in the world. The mega-earthquake had an intensity of 9.2. It occurred on 27th March at around 5.36 PM in the Prince William Sound region of Alaska. It triggered massive Tsunamis in 20 countries such as New Zealand, Peru, and Japan. The largest tsunami wave was recorded in Shoup Bay, Alaska, with a height of about 220 ft (67 m).