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A tsunami is a sea wave or series of waves produced by large disturbances of the sea floor that are of relatively short duration. Such disturbances cause the water column to move vertically and the resulting wave energy to spread outwards across the ocean surface at high speed. Although tsunami...

Contained within the Atlas of Canada Poster Map Series, is a poster showing natural hazards in Canada. The two-sided poster map provides an overview of Canadian catastrophes over space and time. Major Canadian natural hazards including earthquakes, tsunamis, landslides, avalanches, tornadoes and...

Contained within the 3rd Edition (1957) of the Atlas of Canada is a plate that shows maps of earthquakes, magnetism and tides across Canada. The two larger upper maps on this plate show geomagnetism. Since the North Magnetic Pole is in a different position from the Geographical North Pole, and...