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A model of the quake and subsequent tsunami shows the wave reaching the East coast about eight hours after the earthquake. Small tsunamis can also be caused by intense coastal storms, according to ...
Tsunamis have a small wave height offshore, and a very long wavelength (often hundreds of kilometres long, whereas normal ocean waves have a wavelength of only 30 or 40 metres), [39] which is why they generally pass unnoticed at sea, forming only a slight swell usually about 300 millimetres (12 in) above the normal sea surface.
The two "mega-disasters" of the 2004 Indian Ocean tsunami and Hurricane Katrina in 2005 inspired the series and provided a reference point for many of the episodes. [1] Excepting only two shows devoted to man-made disasters, the threats explored can be divided into three general categories: meteorological, geological, and cosmic hazards.
In the 2004 Indian Ocean tsunami, more women died than men, partly due to the fact that fewer women knew how to swim. [36] During and after a natural disaster, women are at increased risk of being affected by gender based violence and are increasingly vulnerable to sexual violence. Disrupted police enforcement, lax regulations, and displacement ...
Deep-ocean Assessment and Reporting of Tsunamis (DART) is a component of an enhanced tsunami warning system. By logging changes in seafloor temperature and pressure, and transmitting the data via a surface buoy to a ground station by satellite, DART enables instant, accurate tsunami forecasts.
The tsunami triggered by the 2011 Japan earthquake rippled across the entire Pacific Ocean wreaking havoc in Santa Cruz harbour to the south of San Francisco, leaving heavy damage.
That meant that every second wave was in phase with the bay, creating a seiche. As a result, Hilo suffered worse damage than any other place in Hawaii, with the combined tsunami and seiche reaching a height of 26 feet (7.9 m) along the Bayfront, killing 96 people in the city alone. Seiche waves may continue for several days after a tsunami.
The National Oceanic and Atmospheric Administration began reanalyzing Atlantic hurricane data in 2006 to correct errors in the hurricane database dating back to the Apollo Program; Hurricane Alberto of 2000 completed the largest loop ever observed over the Atlantic Ocean. Underwater explosions produce ocean surface waves that are similar to ...