Six hundred miles (970 km) of fault ruptured at once and moved up to 60 ft (18 m), releasing about 500 years of stress buildup. Lasting four minutes and thirty-eight seconds, the magnitude 9.2 megathrust earthquake remains the most powerful earthquake ever recorded in North America, and the second most powerful earthquake ever recorded in the world since modern seismography began in 1900. Across south-central Alaska, ground fissures, collapsing structures, and tsunamis resulting from the earthquake caused about 131 deaths. The 1964 Alaskan earthquake, also known as the Great Alaskan earthquake and Good Friday earthquake, occurred at 5:36 pm AKST on Good Friday, March 27. Run-up of 67 m (220 ft) at Shoup Bay, Alaska. Now add the following to the time of the Anchorage low for a prediction of when the bore tide will pass each of these spots on the highway: - Beluga Point (Mile 110): 1 hour 15 minutes - Bird Point (Mile 96): 2 hours 15 minutes - Twentymile River (Mile 80): 4 hours - The best viewing is Beluga Point to Bird Point at the latter wayside, a set of signs explain the tides.60★4′29″N 147☂0′20″W / 60.908°N 147.339°W / 60.908 -147.339 (The magnitude of tides varies on the lunar cycle.) Find the time of low tide in Anchorage. Get a tide-table book or look up the tides on the Web (start at or ) Note the size of the tidal range for the day you are visiting: The bore tide() ()will be most noticeable during periods of large tides. You can (theoretically) predict the bore tide. To see the ocean do such a thing is so unfamiliar it looks almost like science fiction, as the wide arc of foam rushes ahead of a noticeably deeper sea. A breathtaking wall of water up to 6 feet tall called a bore tide can roar up Turnagain Arm twice a day. (Yes, that has really happened.) Amazing as that speed is, the tide here can go even faster. If your foot gets stuck in the mud, it takes less than an hour to drown. When the tide is rising, the water can grow deeper by as much as 7 feet an hour, or a foot of water every 8 1/2 minutes. Tidal Wave - Tides in Turnagain(TRN-uh-gin) Arm which runs along the road from Anchorage to Whittier, rise and fall over a greater range than anywhere else in the United States, with a difference between an extreme high and low of more than 41 feet. Now that was a cool guy!!!! A must see!!!! He said he didnt want to be a part of the beluga frenzied dinner. Then he got back on his paddle and sailed closer to the shore line back to Bird point where he caught the tide. When I asked him why he rode the tide, he said 'He had a hard day at work and needed to unwind'. We did get a chance to talk to the lone paddler who came out of the water before the beluga came in. Though it was too far to take good photos, it was spectacular to watch. Then we saw several white, shiny backs surfacing here and there around the bay. Our patience paid off! We first saw clusters of water mists coming from some parts of the sandbar. It was awesome! A local who was watching with us said that if we wait for 15 more minutes, we will see pods of beluga swimming in to feed on the silvers (cohos). We were at Turnagain Arm in one of their lookouts when we saw the tidal bore coming in with a lone paddler riding it. The second time around was a spectacular experience. On our first stop, we stopped at Beluga point and saw the tide ebbing but was unable to wait for 2 hours to see the high tide come in. We missed the first tide on our first day in Alaska so we made a second stop after our glacier tour at Whittier.

Tide tables anchorage