| Title | Tsunamis |
| Download | Download (whole publication) |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Clague, J J |
| Source | A synthesis of geological hazards in Canada; by Brooks, G R (ed.); Geological Survey of Canada, Bulletin 548, 2001 p. 27-42, https://doi.org/10.4095/212211  Open Access |
| Image |  |
| Year | 2001 |
| Publisher | Natural Resources Canada |
| Document | serial |
| Lang. | English |
| Media | paper; on-line; digital |
| Related | This publication is contained in A synthesis of geological
hazards in Canada |
| File format | pdf |
| Province | British Columbia; Eastern offshore region; Western offshore region; Newfoundland and Labrador |
| NTS | 20P; 21A; 11D; 11E; 11F; 11I; 11J; 1L; 1M; 92B; 92C; 92D; 92E; 92F; 92G; 92K; 92L; 92M; 92N; 103; 102I; 102P; 104B; 104C; 104D; 104E; 104F; 104G; 104K; 104L; 104M; 114 |
| Area | Vancouver Island; Burin Peninsula; Grand Banks; Pacific Coast; Atlantic Coast |
| Lat/Long WENS | -66.0000 -54.0000 47.5000 43.0000 |
| Lat/Long WENS | -144.0000 -122.0000 60.0000 48.0000 |
| Subjects | geophysics; health hazards; tsunami; landslides; earthquakes; sea level changes; wave propagation; Cascadia Subduction Zone; geological hazards |
| Illustrations | sketch maps; photographs; tables; graphs |
| Released | 2001 04 01 |
| Abstract | Tsunamis are waves produced by earthquakes, landslides, volcanic eruptions, and meteorite impacts. Large tsunamis strike the British Columbia coast on average once every few hundred years. Some,
including one from Alaska in 1964, are produced by distant earthquakes beneath the Pacific Ocean. Most, however, are triggered by earthquakes at the Cascadia subduction zone, which extends along the Pacific coast from Vancouver Island to northern
California. Smaller, more localized tsunamis in British Columbia are triggered by landslides. Tsunamis are uncommon on the Atlantic and Arctic coasts. In 1929, however, an earthquake beneath the Grand Banks, 250 km south of Newfoundland, triggered
a large submarine slump that set off a tsunami that damaged 40 communities in Newfoundland and claimed 28 lives. Tsunamis cannot be prevented, but the damage they cause can be reduced through a variety of nonstructural and structural measures,
including zoning, property relocation, emergency preparedness, public education, dyking, barrier construction, floodproofing, and tsunami-resistant construction.
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| GEOSCAN ID | 212211 |
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