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Date Place Lat Lon Deaths Injuries Mag. MMI Comments 2018-10-22 Vancouver Island, British Columbia: 49.335 -129.289 0 0 6.8 IV [1]2017-05-01 Stikine Region, British Columbia: 59.83
The earthquakes are caused by slip along the thrust fault that forms the contact between the two plates. These interplate earthquakes are the planet's most powerful, with moment magnitudes (Mw) that can exceed 9.0. [1][2] Since 1900, all earthquakes of magnitude 9.0 or greater have been megathrust earthquakes. [3]
The 1960 Valdivia earthquake and tsunami (Spanish: Terremoto de Valdivia) or the Great Chilean earthquake (Gran terremoto de Chile) on 22 May 1960 was the most powerful earthquake ever recorded. Most studies have placed it at 9.4–9.6 on the moment magnitude scale , [ 1 ] while some studies have placed the magnitude lower than 9.4.
1,761 km 2 (680 sq mi) British Columbia is the westernmost province of Canada, bordered by the Pacific Ocean. With an area of 944,735 km 2 (364,764 sq mi) it is Canada's third-largest province. The province is almost four times the size of the United Kingdom and larger than every United States state except Alaska.
Victoria is the southernmost major city in Western Canada and is about 100 km (62 mi) southwest from British Columbia's largest city of Vancouver on the mainland. The city is about 100 km (62 mi) from Seattle by airplane, seaplane , ferry , or the Victoria Clipper passenger-only ferry, and 40 km (25 mi) from Port Angeles , Washington , by ferry ...
Peak ground acceleration (PGA) is equal to the maximum ground acceleration that occurred during earthquake shaking at a location. PGA is equal to the amplitude of the largest absolute acceleration recorded on an accelerogram at a site during a particular earthquake. [1] Earthquake shaking generally occurs in all three directions.
Vancouver Island is an island in the northeastern Pacific Ocean and part of the Canadian province of British Columbia.The island is 456 km (283 mi) in length, 100 km (62 mi) in width at its widest point, [4] and 32,100 km 2 (12,400 sq mi) in total area, while 31,285 km 2 (12,079 sq mi) are of land.
The Richter scale [1] (/ ˈ r ɪ k t ər /), also called the Richter magnitude scale, Richter's magnitude scale, and the Gutenberg–Richter scale, [2] is a measure of the strength of earthquakes, developed by Charles Richter in collaboration with Beno Gutenberg, and presented in Richter's landmark 1935 paper, where he called it the "magnitude scale". [3]