As lava continues to flow out of a

As lava continues to flow out of a new volcanic island rising out of the Pacific Ocean, scientists worry that it could trigger a tsunami off the coast of Japan.
The small, but growing, island ("Niijima" in Japanese) appeared just nine months ago and quickly merged with the already-existing island of Nishimo-shima, located 600 miles south of Tokyo.
It now covers 1.39 square kilometers (0.54 square miles), and thanks to increasing daily lava flows, it grows 200,000 cubic meters in volume per day - that's enough to fill 80 Olympic swimming pools.