India, July 30 -- The first tsunami waves were recorded in Hawaii as the buoy data near Nawiliwili confirmed movement across the coast, and water quickly receded at Hanalei Bay on Kauai late on Tuesday. The tsunami, triggered by an 8.8 magnitude earthquake off Russia's Kamchatka Peninsula, has put several West Coast states on alert. The NWS and local authorities warned about dangerous conditions in Alaska, Hawaii, and California.

Hawaii Governor Josh Green has urged continued evacuations, warning of potentially larger waves and flooding that could persist for hours, though no major damage has been confirmed yet.

Green said data from Midway Atoll, which is part of the way between Japan and Hawaii, measured tsunami waves from peak to trou...