Tsunamis are a series of waves dangerous many hours after initial arrival time. 'Tsunami warnings mean that a tsunami with significant inundation is possible or is already occurring.

'If you are located in this coastal area, move inland to higher ground,' the Anchorage Office of Emergency Management said.

In Alaska, authorities urged coast dwellers to seek safety. The epicenter was 26 miles southeast of Old Harbor, at a depth of 5.7 miles. People reported on social media that the quake was felt hundreds of miles away, in Anchorage. A 7.2 magnitude earthquake triggered a brief tsunami advisory for southern Alaska late Saturday. Geological Survey Digital Data Series DDS-21, 1995. A powerful 7.8-magnitude earthquake off the coast of the Alaska Peninsula in the southwestern part of the state on Tuesday night triggered tsunami warnings that were later canceled. The United States Geological Survey wrote in a social. Photos from the Earth Science Photographs from the U.S. A 7.2 magnitude earthquake triggered a brief tsunami advisory for southern Alaska, monitoring bodies reported late Saturday, July 15, 2023. Anchorage district, Cook Inlet region, Alaska. Kodiak officials warned residents to evacuate if they lived in low-lying areas. The graben subsides 11 feet in response to 14 feet of horizontal movement. Less-ominous tsunami watches were issued for the US west coast - the entire coasts of California and Oregon and part of Washington state. Kodiak Station has had: (M1.5 or greater) 0 earthquakes in the past 24 hours. Warnings from the National Weather Service sent to cellphones in Alaska warned: 'Emergency Alert. The strong earthquake was recorded about 278km southeast of Kodiak Island early Tuesday morning. (EPA-EFE/USGS)ĪNCHORAGE, Alaska: A magnitude-8.2 earthquake off Alaska's Kodiak Island prompted a tsunami warning for a large swath of coastal Alaska and Canada's British Columbia while the remainder of the US West Coast was under a watch. The temblor late Saturday occurred in the same region as several other earthquakes over 7 magnitude in the past few years, the Center said via Twitter.A handout map image made available by the United States Geological Survey shows the location of a magnitude-8.2 earthquake that occurred at a depth of 10 km at 9.31 GMT, 278km off southeast of the city of Kodiak, Alaska, on Tuesday. In 1964, a magnitude 9.2 earthquake in Prince William Sound caused extensive damage throughout south-central Alaska. The initial quake and subsequent underwater landslides caused numerous tsunamis, which inflicted heavy damage on the coastal towns of Valdez, Whittier, Seward, and Kodiak. It is the U.S.’s most seismically active state and location of the second-largest earthquake ever recorded, according to the Alaska Earthquake Center. Small sea level changes were still possible, KTUU reported.Īlaska experiences thousands of earthquakes each year, most of which are too deep and too small to be felt. The first wave hit Kodiak about 30 minutes after the earthquake so it was obviously traveling at 600 miles per hour. The largest was a magnitude 5.9, eight minutes after the magnitude 8.2. Residents were advised not to reoccupy hazard zones without clearance from local emergency officials, KTUU reported. The Alaska Earthquake Center reported 14 aftershocks of magnitude 4 or larger in the first two hours after the quake. The National Tsunami Warning Center immediately issued tsunami warnings, leading to evacuations in communities across southern Alaska. 23, 180 miles southeast of Kodiak Island in the Gulf of Alaska. There were an estimated eight aftershocks in the same area of Alaska, including one measuring 5.0 magnitude within three minutes of the original earthquake, NBC affiliate KTUU of Anchorage reported. The year's largest earthquake in Alaska struck at 12:31am on Jan. Warning sirens sound in Kodiak, Alaska, after an earthquake off the coast Saturday. The Hawaii Emergency Management Agency said shortly after the tsunami warning went out that there was no threat to the islands. The quake initially was reported as 7.4 magnitude but downgraded to 7.2 soon after. The 1964 Alaska earthquake, the strongest earthquake ever recorded in North America, struck Alaska’s Prince William Sound, about 74 miles southeast of Anchorage.

Kodiak alaska quake