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The residents of the coastal towns and villages were taken completely by surprise because the tsunami had only been preceded by a relatively weak shock. The magnitude of the tsunami has been estimated as M t =8.2 while the earthquake shaking only indicated a magnitude of M s =7.2. This discrepancy in magnitude requires more than just a slow ...
A tsunami and seiche in Lake Tahoe can be treated as shallow-water long waves as the maximum water depth is much smaller than the wavelength. This demonstrates the impact that lakes have on tsunami wave characteristics, which is different from ocean tsunami wave characteristics because the ocean is deeper, and lakes are relatively shallow in ...
Smith learned about tsunamis in a geography lesson, [4] [5] two weeks before the tsunami, from her teacher Andrew Kearney at Danes Hill School. [ 6 ] [ 7 ] [ 8 ] Specifically, Smith recalled watching black-and-white footage in class of the tsunami resulting from the 1946 Aleutian Islands earthquake and being taught by Kearney for the warning ...
Amplitude, Wave Height, or Tsunami Height: Refers to the height of a tsunami relative to the normal sea level at the time of the tsunami, which may be tidal High Water, or Low Water. It is different from the crest-to-trough height which is commonly used to measure other type of wave height.
UTC time: 1946-04-01 12:29:01: ISC event: 898313: USGS-ANSSComCat: Local date: April 1, 1946 (): Local time: 02:29: Magnitude: 7.4 M s, 8.6 M w, 9.3 M t: Depth: 15 km (9.3 mi) [1] Epicenter: 1]: Type: Megathrust: Areas affected: Hawaii, Alaska United States: Max. intensity: MMI VI (Strong): Tsunami: Up to 42 m (138 ft) at Unimak Island: Casualties: 165–173 [2]: The 1946 Aleutian Islands ...
The train which was struck by the tsunami. Remains of a house near Telwatte, photographed in March 2008. In Ampara District alone, more than 10,000 people died. A holiday train, the "Queen of the Sea", was struck by the tsunami near the village of Telwatta as it travelled between Colombo and Galle carrying at least 1,700 passengers, killing all but a handful on board.