Sri Lanka, July 30 -- Travel disruptions are mounting along the US West Coast and in Hawaii amid tsunami warnings issued across the Pacific after a powerful 8.8 magnitude earthquake struck off Russia's east coast.

Flights to Honolulu are being disrupted, with diversions, delays and cancellations reported across affected airports, according to FlightRadar24.

Flights from various airlines that departed from Los Angeles, Vancouver, San Francisco and San Diego that were bound for Hawaii were turned back to their destination airports late Tuesday, tracking data shows.

Hawaiian and Alaska Airlines are holding departures to Hawaii, diverting some en route flights, and advising passengers to check flight statuses before heading to the airport....