The Philippine Institute of Volcanology and Seismology (Phivolcs) warned to stay aways from coastal areas in the country fronting the Pacific Ocean are expected to experience tsunami of less than one meter Thursday following a magnitude 8.7 earthquake off Russian coast.

State seismologists said the first tsunami waves are expected to arrive between 1:20 p.m. to 2:40 p.m., July 30. They said it may not be the largest and the waves may continue for hours.

Phivolcs advised the public to be alert for unusual waves and stay away from the beach and not go to the coast of the following provinces until the cancellation of the advisory:

• Batanes Group of Islands
• Cagayan
• Isabela
• Aurora
• Quezon
• Camarines Norte
• Camarines Sur
• Albay
• Sorsogon
• Catanduanes
• Northern Samar
• Eastern Samar
• Leyte
• Southern Leyte
• Dinagat Islands
• Surigao del Norte
• Surigao del Sur
• Davao del Norte
• Davao Oriental
• Davap Occidental
• Davao del Sur
• Davao de Oro

Residents whose houses are located very near the shoreline were also advised to move further inland while owner of boats in harbors, estuaries, or shallow coastal water should also move away from the waterfront.

Phivolcs said boats already at sea should stay offshore in deep waters until further notice.