A tsunami warning system (TWS) is used to detect tsunamis in advance and issue warnings to prevent loss of life and damage. It is made up of two equally important components: a network of sensors to detect tsunamis and a communications infrastructure to issue timely alarms to permit evacuation of the coastal areas. There are two distinct types of tsunami warning systems: international and regional. When operating, seismic alerts are used to instigate the watches and warnings; then, data from observed sea level height (either shore-based tide gauges or DART buoys) are used to verify the existence of a tsunami. Other systems have been proposed to augment the warning procedures; for example, it has been suggested that the duration and frequency content of t-wave energy (which is earthquake energy trapped in the ocean SOFAR channel) is indicative of an earthquake's tsunami potential.
In the aftermath of the earthquake that violently struck Japan and the tsunamis it generated, the small, industrial city of Hitachi emerged unscathed from what Prime Minister Naoto Kan has described as Japan’s “worst crisis since the Second World War”, making it somewhat of a refuge for the hordes of refugees that flooded from many [...]
Dr. Beverly Goodman of the Leon H. Charney School of Marine Sciences at the University of Haifa was doing some research on the ancient port and shipwrecks of the place, when she stumbled upon information that led her to this conclusion. “There is a likely chance of tsunami waves reaching the shores of Israel. Tsunami [...]
In case you don’t know, a tsunami is a series of waves created when a body of water, such as an ocean, is rapidly displaced. Earthquakes, mass movements above or below water, volcanic eruptions and other underwater explosions, landslides, underwater earthquakes, large meteoroid or asteroid impacts and testing with nuclear weapons at sea all have [...]