Sri Lanka, July 30 -- Several countries are under tsunami threat after a powerful 8.7-magnitude earthquake struck Russia's Kamchatka Peninsula. Tsunami waves have already reached parts of Russia's Kuril Islands and Japan's northern island of Hokkaido.

Here is the complete list of countries and islands where tsunami waves could strike, as per US tsunami warning system.

Tsunami Waves Over 3 Meters Possible:

Tsunami Waves Between 1 to 3 Meters Possible:

Tsunami Waves Between 0.3 to 1 Meter Possible:

(With inputs from agencies)

Published by HT Digital Content Services with permission from Ada Derana....