An 7.9 magnitude earthquake struck Alaska at 12:31 a.m. Tuesday, Jan. 23.The steady roller shook the lower Kenai Peninsula for at least a minute, causing walls to creak and objects to fall off shelves, but causing no reported major damage.

The quake hit about 175 miles southeast of Kodiak at a depth of 12.5 miles. The National Oceanic and Atmospheric Administration downgraded the tremblor to a 7.9 magnitude after it was originally reported to be an 8.2 magnitude quake.

The Alaska Tsunami Warning Center issued a tsunami warning for all of coastal Alaska and advised residents to evacuate to safer ground. The National Weather Service has estimated that a tsunami would start in Homer around 2:50 a.m. Tuesday.

Homer Volunteer Fire Department Chief Bob Painter confirmed around 1:40 a.m. that the city has opened Homer High School as a shelter in case people need it. Numerous vehicles were headed up West Hill Road and East Hill Road early Tuesday morning in search of higher ground.

This is a developing story.