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On September 14, 1984, the Otaki earthquake (magnitude 6.8) in Nagano Prefecture, Japan, caused a major mudslide on the south face of Mount Ontake, which reached speeds of 80~100 km/h. [7] Heavy rain over several days prior to the quake contributed to causing the mudslide, known as "Ontake Kuzure," which took the lives of 29 people.
On 24 March, Nissan said it may move some engine production to the United States due to earthquake damage in Japan. Also on 24 March, IHS Inc. automobile analyst Paul Newton predicted U.S. plants could experience parts shortages by mid-April and that automobile production worldwide could drop by 30%. Toyota expected some shutdowns in North ...
In January 1949, the "Earthquake Observation Law" was revised to establish intensity 7, and the scale was expanded to 8 levels, from 0 to 7; this was because concern arised that damage caused by the 1948 Fukui earthquake, which saw over 90% house collapse in some areas, could not be accurately expressed with intensity 6.
Earthquakes are common on the West Coast, with multiple plate boundaries like the San Andreas fault making geologic activity more likely. They are rarer on the East Coast, but they do happen .
TOKYO — Japan was struck by a series of powerful earthquakes on New Year's Day that killed at least 48 people, reduced hundreds of buildings to rubble, and forced tens of thousands to flee to ...
A series of powerful earthquakes that hit western Japan left at least 62 people dead Wednesday, as rescue workers fought to save those feared trapped under the rubble of collapsed buildings.
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]
A large earthquake shook Kyushu, Japan, just after 9 p.m. local time Monday night, triggering a tsunami advisory for Japan's southeast coast. The quake was centered just offshore of Kyushu, about ...