ANCHORAGE, ALASKA -- The largest earthquake in the United States in the last half century produced a lot of shaking but spared Alaska any major damage in a sparsely populated region, officials said Thursday. The magnitude 8.2 earthquake was reported about 10:15 p.m. Wednesday, and it struck just south of the Alaska Peninsula, nearly 500 miles (804.67 kilometres) southwest of Anchorage. The quake was about 60 miles (96.56 kilometres) offshore and 29 miles (46 kilometres) below the surface of the North Pacific Ocean, according to the U.S. Geological Survey. The Alaska Earthquake Center said on its website that it was the largest quake in the U.S. since a magnitude 8.7 quake in the Aleutians in 1965. A year before that, the magnitude 9.2 Good Friday earthquake devastated parts of Anchorage and other Alaska communities. That quake and ensuing tsunami killed 131 people from Alaska to California.