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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.
A tsunami earthquake can be defined as an undersea earthquake for which the surface-wave magnitude M s differs markedly from the moment magnitude M w, because the former is calculated from surface waves with a period of about 20 seconds, whereas the latter is a measure of the total energy release at all frequencies. [2]
The 1992 Flores earthquake and tsunami occurred on 12 December on the island of Flores in Indonesia. With a magnitude of 7.8 and a maximum Mercalli intensity of VIII ( Severe ), it was the largest and also the deadliest earthquake in 1992 and in the Lesser Sunda Islands region.
A tsunami hitting a coastline. This article lists notable tsunamis, which are sorted by the date and location that they occurred.. Because of seismic and volcanic activity associated with tectonic plate boundaries along the Pacific Ring of Fire, tsunamis occur most frequently in the Pacific Ocean, [1] but are a worldwide natural phenomenon.
Cars struck by the tsunami in Gurney Drive, George Town, Penang. The then-Prime Minister, Dato' Seri Abdullah Ahmad Badawi, cut short his holiday in Spain after five days of the diplomatic trip to India and returned to Malaysia. He instructed the government to cancel all New Year celebrations and urged all parties, including the private sector ...
Where a continental earthquake will cause damage and loss of life on land from fires, damaged structures, and flying objects; a submarine earthquake alters the seabed, resulting in a series of waves, and depending on the length and magnitude of the earthquake, tsunami, which bear down on coastal cities causing property damage and loss of life.
They were among the 31 Europeans who died in the earthquake and tsunami. [6] [7] Right after the earthquake, a large tsunami reportedly swept through the coast of the island. On the Hitu peninsula, the waves were thought to be as high as 100 metres (330 ft), nearly topping the coastal hills. Entire forests and plantations were uprooted and ...
The 2004 Indian Ocean tsunami was a teletsunami.. A teletsunami (also called an ocean-wide tsunami, distant tsunami, distant-source tsunami, far-field tsunami, or trans-ocean tsunami) is a tsunami that originates from a distant source, defined as more than 1,000 km (620 mi) away or three hours' travel from the area of interest, [1] [2] sometimes travelling across an ocean.