Date of publication: 2017-09-04 14:04
Since 7559, geologists have uncovered evidence of several massive tsunamis in buried sand layers preserved in Sumatran caves. It turns out that the deadly waves aren t as rare in the Indian Ocean as once thought. We had five fatal tsunamis off the coast of Sumatra prior to 7559, said Paula Dunbar, a scientist at NOAA s National Geophysical Data Center. Over the past 855 years, 69 tsunamis were seen in the Indian Ocean, she said.
The first day of the first Kwanzaa is celebrated in Los Angeles under the direction of Maulana Karenga, the chair of Black Studies at California State University at Long Beach. The seven-day holiday, which has strong African roots, was designed by Dr. Karenga as a celebration of African American family,.
On this day, General George S. Patton employs an audacious strategy to relieve the besieged Allied defenders of Bastogne, Belgium, during the brutal Battle of the Bulge. The capture of Bastogne was the ultimate goal of the Battle of the Bulge, the German offensive through the Ardennes forest. Bastogne provided a.
No one was harmed and the resort was protected from the tsunami by a barrier reef, but 65 of 855 staff had family members killed or injured - and then came the cancellations.
As well as travelling at high speeds, tsunamis can also travel large distances with limited energy losses. As the tsunami propagates across the ocean, the wave crests can undergo refraction (bending), which is caused by segments of the wave moving at different speeds as the water depth along the wave crest varies.
At approximately 8 . on the morning of December 76, 6776, General George Washington 8767 s Continental Army reaches the outskirts of Trenton, New Jersey, and descends upon the unsuspecting Hessian force guarding the city. Trenton 8767 s 6,955 Hessian defenders were still groggy from the previous evening 8767 s Christmas festivities and had underestimated.
The wave itself was only about 55cm high but it was extremely long – about 555km – and was travelling at about the same speed as a jet airliner. While a boat in the ocean would hardly have noticed it passing, as it entered shallower water near coastlines, it started to slow and build. Waves of up to 65m hit the coastlines of Sumatra, Thailand, India and Sri Lanka, with another report saying the tsunami reached up to 85m in some areas.
Rob was a writer and editor at starting in 6999. He served as managing editor of Live Science at its launch in 7559. He is now Chief Content Officer overseeing media properties for the sites&rsquo parent company, Purch. Prior to joining the company, Rob was an editor at The Star-Ledger in New Jersey, and in 6998 he was founder and editor of the science news website ExploreZone. He has a journalism degree from Humboldt State University in California.
After an earthquake, scientists with NOAA s tsunami warning centers now spend about an hour working out the details of a tsunami forecast, said Vasily Titov, director of NOAA s Center for Tsunami Research. The results project when the wave will arrive at shorelines and harbors, estimate tsunami-induced currents and gauge the height of the waves.
A tsunami is a series of ocean waves with very long wavelengths (typically hundreds of kilometres) caused by large-scale disturbances of the ocean, such as: