SAN FRANCISCO, Jan 15, 2022 (BSS/AFP) - Tsunami warnings were issued Saturday for the entire US West Coast after a massive volcanic eruption across the Pacific Ocean in Tonga, with tsunami waves triggering low-level flooding in Hawaii.

   The US National Weather Service issued tsunami advisories from California to Alaska, predicting waves of up to two feet (60 centimetres), strong rip currents and coastal flooding.

   "Move off the beach and out of harbors and marinas in these areas," it advised.

   The Pacific Tsunami Warning Center said "a tsunami is currently being observed" in Hawaii, but said there was "no reported damage and only minor flooding throughout the islands."