Nurtle on Instagram: "A man walking his dog on Russia’s Kamchatka Peninsula casually filmed a massive tsunami approaching the shore, using only his mobile phone. Kamchatka is one of the most seismically active regions in the world, sitting on the Pacific Ring of Fire. Earthquakes here can trigger tsunamis with little warning, especially along its remote coastlines. Despite the dangerous power of tsunamis, they can appear deceptively calm, often resembling a series of large, fast-moving tides unt