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Ocean floor shifts created large tsunamis (up to 220 feet (67 m) in height), which resulted in many of the deaths and much of the property damage. [7] Large rockslides were also caused, resulting in great property damage. Vertical displacement of up to 38 feet (12 m) occurred, affecting an area of 100,000 square miles (260,000 km 2) within Alaska.
Standard gravity. The standard acceleration of gravity or standard acceleration of free fall, often called simply standard gravity and denoted by ɡ0 or ɡn, is the nominal gravitational acceleration of an object in a vacuum near the surface of the Earth. It is a constant defined by standard as 9.806 65 m/s 2 (about 32.174 05 ft/s 2).
8.0 M s Unknown [1] December 16, 1811: Missouri: 7.5–8.0 M w 100 −500: 1811–1812 New Madrid earthquakes: December 8, 1812: California: 6.9 M la, 7.5 M w 40+ 1812 San Juan Capistrano earthquake: December 12, 1812: California: 7.1–7.5 M w 1: 1812 Ventura earthquake: June 2, 1823: Hawaii 7.0 M L: 0 [2] June 1838: California 6.8–7.2 M w 0 ...
This measuring system was formerly known as the Saffir–Simpson hurricane scale, or SSHS. To be classified as a hurricane, a tropical cyclone must have one-minute-average maximum sustained winds at 10 m (33 ft) above the surface of at least 74 mph (64 kn, 119 km/h; Category 1). [1] The highest classification in the scale, Category 5, consists ...
A small crater lake about 130 by 30 ft (39.6 by 9.1 m) in size and 16 ft (5 m) deep, the highest in North America with a surface elevation of 14,203 ft (4,329 m), occupies the lowest portion of the west crater below more than 100 ft (30 m) of ice and is accessible only via the caves.
A term for a measure of alcohol that was enough to fill a large wine bottle. South Africa eventually adopted the standard French 750-ml bottle. 1 anker = 24.25 (≈24) kannen, 1⁄4 ahm = 1⁄16 legger [9.5 Dutch gallons, 32.25 L iters, 7.9143 (≈8) Imp. gals.] A Dutch term for a small wine or brandy cask.
Track gauge. Two foot and 600 mm gauge railways are narrow gauge railways with track gauges of 2 ft (610 mm) and 600 mm (1 ft 115⁄8 in), respectively. Railways with similar, less common track gauges, such as 1 ft 113⁄4 in (603 mm) and 1 ft 111⁄2 in (597 mm), are grouped with 2 ft and 600 mm gauge railways.
The 10 foot (3 m) diameter 1.5 mile (2.4 km) water tunnel was completed in 1951 and delivers up to 500 cubic feet per second (14.2m 3 /s) to Montgomery Reservoir about a mile southwest of the pass, from which the water is piped 70 miles (113 km) to Colorado Springs.