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  2. List of tsunamis - Wikipedia

    en.wikipedia.org/wiki/List_of_tsunamis

    A tsunami surge of 64-centimetre (25 in) hit Norfolk Island and tsunami waves of 30-to-40-centimetre (12 to 16 in) hit New Zealand, [197] while a much larger tsunami of 2.64 m (8.7 ft) in height hit Raoul Island, closest to the epicentre of the earthquake.

  3. Megatsunami - Wikipedia

    en.wikipedia.org/wiki/Megatsunami

    A megatsunami is a tsunami with an initial wave amplitude measured in many tens or hundreds of metres.The term "megatsunami" has been defined by media and has no precise definition, although it is commonly taken to refer to tsunamis over 100 metres (330 ft) high. [2]

  4. Tsunami - Wikipedia

    en.wikipedia.org/wiki/Tsunami

    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.

  5. The California tsunami danger is real. The 7.0 earthquake is ...

    www.aol.com/news/california-tsunami-risk-real...

    Large tsunami waves might be more than 50 feet high in some areas close to the coast. Tsunami waves can last for hours. Do not attempt to surf or watch a tsunami.

  6. 1958 Lituya Bay earthquake and megatsunami - Wikipedia

    en.wikipedia.org/wiki/1958_Lituya_Bay_earthquake...

    The wave came out of the lower part, and looked like the smallest part of the whole thing. The wave did not go up 1,800 feet, the water splashed there. [11] The wave made its way to his boat 2–3 minutes after he saw it and carried the Edrie down to the southern shore and then back near the center of the bay. Ulrich was able to control the ...

  7. A ‘non-destructive’ tsunami was spotted after California’s ...

    www.aol.com/non-destructive-tsunami-spotted...

    Large tsunamis have occurred in the US and will again. A magnitude 9.2 earthquake in the Gulf of Alaska caused damage and loss of life along the West Coast in 1964. More than 150 tsunamis have ...

  8. Seismic magnitude scales - Wikipedia

    en.wikipedia.org/wiki/Seismic_magnitude_scales

    Not to be confused with the height of a tidal wave, or run-up, which is an intensity effect controlled by local topography.) Under low-noise conditions, tsunami waves as little as 5 cm can be predicted, corresponding to an earthquake of M ~6.5. [64] Another scale of particular importance for tsunami warnings is the mantle magnitude scale, M m. [65]

  9. 7.0 earthquake in Northern California knocks out power to ...

    www.aol.com/tsunami-warnings-california-oregon...

    It is capable of producing magnitude-9.0 earthquakes and tsunami waves about 100 feet tall. In 2022, two people died after a ma gnitude-6.4 earthquake struck offshore near Ferndale, not far from ...