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The word tsunami comes from the Japanese for "harbor wave." They are especially dangerous in harbors where the water can become trapped and compressed, causing higher waves.
Smaller (M w 4.2) earthquakes in Japan can trigger tsunamis (called local and regional tsunamis) that can devastate stretches of coastline, but can do so in only a few minutes at a time. Landslides The Tauredunum event was a large tsunami on Lake Geneva in 563 CE, caused by sedimentary deposits destabilised by a landslide.
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 ...
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).
7 Facts About Earthquakes. Earthquakes are common in the Caribbean, with some events even being catastrophic for island nations. In 2021, a 7.2-magnitude earthquake struck southern Haiti, causing ...
More than 150 tsunamis have hit California’s shore since 1800. Most were barely noticeable, but a few have caused fatalities or significant damage. The most destructive tsunami to hit California ...
As it approaches land, the wave height of an ordinary tsunami increases dramatically as the sea floor slopes upward and the base of the wave pushes the water column above it upwards. Ordinary tsunamis, even those associated with the most powerful strike-slip earthquakes, typically do not reach heights in excess of 30 m (100 ft). [3] [4]
A tsunami that devastated the area around Indonesia's Sunda Strait, leaving at least 222 dead and hundreds more injured, struck fast and without warning on Saturday. While most tsunamis have ...