In Alaska, residents awoke to a “earthquakes” today over a region where there has been no major natural disaster in at least the last two decades, a seismologist said.
The earthquake, at 6.3 on the Richter scale, was centered about 50 miles northwest of the city of Fairbanks and was felt as far south as Anchorage, according to the U.S. Geological Survey.
The quake was centered in a small area of a deep canyon about 30 miles (50 kilometers) wide.
The Richter Scale is a scale of magnitude that uses the Earth’s gravity to determine the intensity of earthquakes, but the Richters scale is not always used in seismic studies.
“It’s not really known how much it’s going to do, but it was felt,” said John Ting, a professor of geology at the University of Alaska Fairbanks.
“It was a fairly deep earthquake that was fairly deep.”
Alaska’s seismologist, John Teng, said that the Richts scale doesn’t take into account the magnitude of the earthquake, and that a much stronger earthquake might have been felt.
Teng said that an earthquake of this magnitude could be felt up to 100 miles (160 kilometers) away.
Teng said the Richt scale was used by the U,S.
government when determining the risk for the worst-case scenario of a major earthquake, such as an earthquake that would cause catastrophic damage.
“You could say the Richted scale is a good tool for determining the likelihood of catastrophic damage, but you also have to be realistic,” he said.
Ting said the seismic activity in Alaska came after a massive volcanic eruption of lava that occurred about 4,000 years ago.
That eruption occurred about 6,500 years ago, Teng added.
Scientists said the event, which was centered more than 4,500 miles (6,000 kilometers) from Alaska, could have been caused by a large volcanic eruption or a series of smaller earthquakes.
“We don’t know the cause of this earthquake, but we are starting to learn the causes,” said Dr. Matthew Burt of the U of A’s Center for Geophysics and Volcanology.
The eruption of a large lava flow, known as an alaskan lava flow (ALF), in the mid-19th century, killed about 3,000 people in the state.
Tings said it could be a result of a volcanic eruption, a series, or an eruption of magma from an island in the area.
“There are a number of possibilities that could cause this event,” Ting said.
“You could have magma being deposited on the island that could have triggered the eruption.
The volcanic eruption could have occurred as a result [of] a large eruption that occurred there.”
Ting was also quoted by The Associated Press as saying that the event could have caused the destruction of a building.
He said that there is no evidence that the building was struck by a car or that any other damage occurred.
The Associated Press contributed to this report.