Aleutian+arc


 * **__Location:__** || Northern Pacific Ocean, extending 1,200miles from Alaska to the Kamchatka Peninsula in Russia. ||
 * **__Tectonics:__** || 75 Volcanoes, within historic times 40 of these volcanoes have produced more than 265 documented eruptions. Part of the 'Pacific Ring of Fire'. Earthquake in 1964. 1 to 2 eruptions within the Arc each year. High rate of Volcanic Activity due to rapid rate of Plate convergence. (7cm a year.) ||
 * **__Plate Boundary:__** || Pacific and North American Plates. (Oceanic under Continental, Subduction Zone) ||
 * __**Trench Gap**__ : || 570 km (354 miles) wide ||
 * __Alaska Earthquake 1964:__**
 * Magnitude : 9.2
 * Second most powerful earthquake recorded by a Seismograph.
 * Lasted 5 mins.
 * 131 killed. (9 Died as a result of the earthquake, the rest were killed by the Tsunamis)
 * 27 ft Tsunami destroyed the village of Chenega, Alaska.
 * Fault: Pacific/North American Plates, Subduction Zone earthquake (Oceanic under Continental.)
 * Focus: 15.5 miles underground.
 * Tsunamis reached 70 ft in height in some places with a vertical displacement of up to 38 ft.
 * Damage : $2.06 billion (in current US dollars)
 * 10,000 aftershocks which lasted 18 months.
 * Not many human impacts due to small population.
 * **__Physical Impacts:__**
 * Downtown Anchorage was heavily damaged.
 * Control tower at the airport collapsed.
 * Town of Valdez was completely relocated to higher ground, 7km west of its original site.
 * The entire earth vibrated as a result of the Quake.
 * The Tsunami reached Hawaii and Japan and Western USA.
 * XI (very disastrous) on the Mecalli Scale.