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IOC Tsunami Glossary by the Intergovernmental Oceanographic Commission (IOC) at the International Tsunami Information Centre (ITIC) of UNESCO; Tsunami Terminology at NOAA; In June 2011, the VOA Special English service of the Voice of America broadcast a 15-minute programme on tsunamis as part of its weekly Science in the News series. The ...
Tilly Smith (born 1994) is a British woman who, as a child, was credited with saving the lives of approximately 100 beachgoers at Mai Khao Beach in Thailand by warning them minutes before the arrival of the tsunami caused by the 2004 Indian Ocean earthquake.
Diagram showing how earthquakes can generate a tsunami. Tsunamis in lakes can be generated by fault displacement beneath or around lake systems. Faulting shifts the ground in a vertical motion through reverse, normal or oblique strike slip faulting processes, this displaces the water above causing a tsunami (Figure 1).
Analysis of tsunami earthquakes such as the 1946 Aleutian Islands earthquake shows that the release of seismic moment takes place at an unusually long period. Calculations of the effective moment derived from surface waves show a rapid increase with decrease in the frequency of the seismic waves, whereas for ordinary earthquakes it remains almost constant with frequency.
The 1498 Meiō earthquake (明応地震 Meiō Jishin) struck off the coast of Nankaidō, Japan, at approximately 08:00 local time [3] on September 20, 1498. [1] With an estimated magnitude of 8.6 M s, [1] it triggered a massive tsunami.
Many villages on the islands were affected by the tsunami, which reached a height of 3 m (9 ft) and swept as far as 600 m (1800 ft) inland. The tsunami caused widespread destruction that displaced more than 20,000 people and affected about 4,000 households. 435 people were reported to have been killed, with over 100 more still missing. [3]
An example of this was the 17 July 1998, Papua New Guinean landslide tsunami where waves up to 15 m high impacted a 20 km section of the coast killing 2,200 people, yet at greater distances the tsunami was not a major hazard. This is due to the comparatively small source area of most landslide tsunami (relative to the area affected by large ...
The 9.0 M w earthquake occurred on 5 November 1952 at 04:58 local time, triggering a major tsunami that hit Severo-Kurilsk, Kuril Islands, Sakhalin Oblast, Russian SFSR, USSR. [5] This led to the destruction of many settlements in Sakhalin Oblast and Kamchatka Oblast , while the main impact struck the town of Severo-Kurilsk.