There was absolutely NO SLEEP, our first night in Hawaii... When you are from Arizona, believe me you know nothing about TSUNAMI's.. only flash floods and dust storms. The sirens were ALL night, first in english and then japanese. Oh, and just loved my arizona peeps that forgot Hawaii was 3 hours behind in time, so all the 6:00 am calls I got in Hawaii, meant that it was 3:00 am in Hawaii. Just chalked this experince to my book of lifes adventures! Wouldn't trade them for anything! Oahua, Hawaii -- A Tsunami Warning is now in effect for the state of Hawaii following an 8.9 magnitude earthquake off the east coast of Honshu, Japan. Scientists at the Pacific Tsunami Warning Center in Ewa Beach said that based on available data, a tsunami may have been generated by the quake. They said the earliest that tsunami waves could reach Hawaii would be at 3:07 a.m. Friday at Nawiliwili Harbor on Kauai. The first waves would reach Honolulu at 3:21 a.m., Kahului at 3:27 a.m., and Hilo at 3:46 a.m. Tsunami sirens began sounding at 9:59 p.m. on Thursday. They have sounded every hour since 11:15 p.m.