An earthquake with an initial magnitude of 7.0 struck near Anchorage, Alaska, causing considerable damage, landslides rocks and an alarming alarm for office workers plunged under their desks.

Residents reported social media damage: a man posted a photo of his overturned chimney on Twitter and a local TV channel showed his studio was full of debris. The former governor of Alaska and vice presidential candidate, Sarah Twin, said her family was intact but that she "The house is not."

"It's a big earthquake and there have been many aftershocks," said John Bellini, a seismologist at the US Geological Survey. He added that the biggest aftershock was a magnitude 5.7 earthquake about six minutes after the major earthquake.

The earthquake struck at 8:29 am local time, about seven miles north of Anchorage, announced the USGS. Injuries were immediately reported.

The National Tsunami Warning Center in Palmer, Alaska, issued a warning regarding the Cook Inlet coastal areas and the Kenai Peninsula in southern Alaska.

"The bed started shaking and everything was shaking so dramatically," Blair Braverman told CNN about the earthquake. "People were running in the corridors and knocking on doors to evacuate."

Alaska has an average of 40,000 earthquakes per year, with more earthquakes than the other 49 states combined.

Anchorage has already been hit hard. The city was badly damaged by a 1964 earthquake.

Contributor: Associated Press [19659018] Read or share this story: https://www.usatoday.com/story/news/2018/11/30/earthquake-strikes-near-anchorage-tsunami-warning-issued/2163178002/