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The magnitude 9.5 earthquake of 22 May 1960, the largest earthquake ever recorded, generated one of the most destructive tsunamis of the 20th century. The tsunami spread across the Pacific Ocean, with waves measuring up to 25 metres (82 ft) high in places. The first tsunami wave hit Hilo, Hawaii, approximately 15 hours after its origin. The ...
Tsunamis generally consist of a series of waves, with periods ranging from minutes to hours, arriving in a so-called "wave train". [11] Wave heights of tens of metres can be generated by large events. Although the impact of tsunamis is limited to coastal areas, their destructive power can be enormous, and they can affect entire ocean basins.
The most destructive tsunami to hit California occurred on March, 28, 1964. Several surges reaching 21 feet high swept into Crescent City four hours after a magnitude 9.2 earthquake in Alaska ...
2011 Tōhoku earthquake and tsunami: Japan Earthquake, Tsunami March 11 2012 1,901 Typhoon Bopha: Philippines Tropical cyclone December 4 – 5 2013 6,340 Typhoon Haiyan: Philippines, Vietnam, China November 8 – 10 2014 2,700 2014 Badakhshan mudslides: Afghanistan Landslide May 2 2015 8,964 April 2015 Nepal earthquake: Nepal, India Earthquake ...
While earthquakes as large as 6.5 or below are very unlikely to trigger a tsunami and those between 6.5 and 7.5 do not usually produce destructive tsunamis, larger earthquakes could result in much ...
Most destructive tsunamis. In 2004, a magnitude 9.1 earthquake occurred off Sumatra, an Indonesian island in the Indian Ocean. It generated a tsunami that was as high as 167 feet (51 meters), causing an estimated 230,000 deaths. Another magnitude 9.1 earthquake struck in Japan in 2011, creating a tsunami with waves reaching 127 feet (39 meters).
The earthquake was assigned a moment magnitude (M w ) of 8.5–8.6 and caused a destructive tsunami of 1.5 m (4 ft 11 in) at the Kai islands. [ 1 ] [ 4 ] The tsunami expected for an earthquake of this size is much greater, such as of those in 1629 and 1852, however this earthquake occurred at a depth of 60 km which impeded much of the ocean ...
Tsunami damage at Barangay Tibpuan, Lebak, Mindanao. Several fault zones in the region are capable of producing major earthquakes and destructive local tsunamis. The two major fault zones that are most dangerous are the Sulu Trench in the Sulu Sea and the Cotabato Trench, a region of subduction that crosses the Celebes Sea and the Moro Gulf in Southern Mindanao.