While Monday's tsunami response was ultimately more of a drill than a true emergency, the traffic it triggered offered a real-time test of Oahu’s evacuation capacity — one that state officials admit was deeply strained.

Dr. Chip McCreery, a tsunami expert with the National Oceanic and Atmospheric Administration, shares what Hawaii should anticipate from the Tsunami Warning in effect. The tsunami is expected to reach

Tsunami waves have been recorded across the Pacific after a huge earthquake of 8.8 magnitude struck off the far east coast of Russia on Wednesday. Evacuations have been ordered in Japan and Hawaii, where residents were urged to go to high ground.