A massive undersea earthquake near Russia's Kamchatka Peninsula triggered tsunami warnings across the Pacific, affecting regions from Japan to Hawaii and parts of the US West Coast.

The 2004 Indian Ocean tsunami and the 2011 Japan tsunami were two of the most ruinous natural disasters in recent history, claiming over 230,000 lives across 14 countries in the former, and more ...

Tsunami warnings have improved greatly in recent decades, since the 2004 Indian Ocean tsunami which killed 228,000 people, and then the 2011 Tōhoku earthquake which devastated Japan.