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A 2021 map shows the impact of a tsunami hitting the San Fransisco area - and the devastation it could cause. The map was thrust back into the spotlight Thursday when a 7.0-magnitude earthquake ...
In seismology, a tsunami earthquake is an earthquake which triggers a tsunami of significantly greater magnitude, as measured by shorter-period seismic waves. The term was introduced by Japanese seismologist Hiroo Kanamori in 1972. [ 1 ]
At 12:47:26 VUT (01:47:26 UTC) on 17 December 2024, a M w 7.3 earthquake struck Port Vila, the capital of Vanuatu. [1] At least 14 people died while 210 others were injured. [2] Extensive damage occurred in Port Vila and surrounding areas. The earthquake also generated a 25 cm (10 in) tsunami. [3]
The 2004 Indian Ocean earthquake came just three days after a magnitude 8.1 earthquake in the sub-antarctic Auckland Islands, an uninhabited region west of New Zealand, and Macquarie Island to Australia's north. This is unusual since earthquakes of magnitude eight or more occur only about once per year on average. [43]
There have been just under 40 earthquakes of magnitude 6.0 or larger in the past century within 150 miles of Thursday’s earthquake, which was the most powerful to rattle the state since a 7.1 ...
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 ...
During the catastrophic tsunami of 1964, which was generated by a magnitude 9.2 earthquake in Alaska, the first three surges that hit Crescent City were relatively small. The fourth, at 21 feet ...
Image as of a few days after the earthquake. The 2004 Indian Ocean earthquake and tsunami occurred on Sunday, December 26, 2004. The earthquake itself, with a moment magnitude of around 9.2-9.3, devastated Aceh Province, Indonesia, while the tsunami affected countries all around the Indian Ocean. Nations which were affected are listed below in ...