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The tsunami magnitude scale, M t, is based on a correlation by Katsuyuki Abe of earthquake seismic moment (M 0 ) with the amplitude of tsunami waves as measured by tidal gauges. [62] Originally intended for estimating the magnitude of historic earthquakes where seismic data is lacking but tidal data exist, the correlation can be reversed to ...
Two scales were developed, one based on surface waves, , and one on body waves, . Surface waves with a period near 20 s generally produce the largest amplitudes on a standard long-period seismograph, and so the amplitude of these waves is used to determine M s {\displaystyle M_{s}} , using an equation similar to that used for M L {\displaystyle ...
A rogue wave, by contrast, is a very high wave that could definitely have washed the look-outs away; and the seas off the SE coast of South Africa where the Agulhas current meets western storms are known for rogue waves. If it were a tsunami, the ship would have had to be very near the coast to be impacted and would most likely have been washed ...
The boats are facing south, likely to Sagami Bay to collect a cargo of fish for sale in Edo. [24] Each boat has eight rowers who are holding their oars. At the front of each boat are two more relief crew members; 30 men are represented in the picture but only 22 are visible.
In 1927 he developed the Sieberg Scale, a six-degree scale for assessing the strength of tsunamis on the basis of their effects on humans, buildings and nature, which was adapted in 1962 by Nicholas Ambraseys in the form of the Sieberg-Ambraseys Tsunami Intensity Scale to the usual twelve-degree earthquake scales. In 1939 Sieberg published the ...
Scale for RC model ships, usually produced by Dumas: 1:36: 8.467 mm Popular scale for period ship plans — 1 inch = 3 feet. 1:35: 8.709 mm: Military models: The most popular scale for military vehicles and figures. Used heavily in models of armoured vehicles. It was originally conceived by Tamiya for convenience of fitting motorised parts and ...
Damage to a tree at the mouth of the bay from the wave. Hat placed on stump for scale. The effects of the tsunami still visible in 2010. Differently-aged vegetation grows on the ridge separating Lituya Glacier from the main part of the bay. The orientation is looking north from the head of the bay, with Lituya Glacier to the right.
The Water Line Series was created by the Shizuoka Plastic Model Manufacturers Association in May 1971. It is a collaborative effort by three manufacturers to produce constant scale models of most of the ships of the Imperial Japanese Navy during World War II, [5] in their first series, and then an ongoing collection of 1/700-scale kits of warships of the world. [6]