The main earthquake on July 9, 1958 occurred along the fault of Fervezer in the south -east of Alaska. Around Lituya Bay FairWeather is a fault of transformation (horizontal fault), but with a significant vertical movement of the oceanic bark block.
The tough earthquake in 1899 in Fervezer also caused dramatic vertical changes.
Two small bays of krillone and Gilbert in the upper part of the Bay of Lita, as well as the expansion of the glacier covered on both sides, a total distance of 12 miles formed during the appointment along the fault of the fears.
The small bay and the entire area of the bay are part of the oceanic plate, which in the area of July 9, 1958 lifted about 3.5 feet (1.1 meters) in this area. A fracture along the entire part of the bay on the north -east side of the small bay.
The epicenter of the earthquake is located in the coordinates of 58.6 ° northern latitude and west 137.1 ° to the west, not far from the Fairvizer mountains, about 7.5 miles (12 km) east of Fairvezer Fair and 13 Miles (20.8 km) in the south -east of Litua Bay. This earthquake is 7.9, although several sources were reported to 8.3 (Brazee & Cloud, 1960). This is the strongest earthquake in the region since the earthquake in the Cape Yakataga, the size of 8.2 September 4, 1899.
Shocks are felt throughout the city in the south -east of Alaska, covering an area of 400,000 square miles, to Seattle to Washington in the South, and Whitehors, YT, Canada in the east. It is also reported that the vertical shift is 3.5 feet (1.05 meters), and the horizontal 21 feet (6.3 m) were measured on surface cracks along the fault of Fairvezer 6-10 miles in the southeastern bay of the Litu Crillone (Tocher and Miller). It is assumed that a similar shift occurred along Crillon and Gilbert Inlet upstream of Litu, where the mega -tsunami was formed.
