Over the past several months, Japan has seen a new island grow exponentially larger around Nishinoshima volcano.
The Japanese Coast Guard (JCG) has traveled to this volcano at least once per month for approximately the last year.
Over the past year, the island has grown from a small volcanic vent, and FULLY covered the other island which was nearby. This new island is also growing in height.. rising several dozen feet above sea level by the beach, and upwards of a few hundred feet towards the cone.
Compare the old photographs from a few years ago, to the new island now!
In 2013, the new island was just beginning to grow above sea level. Within 2 years time, Nishinoshima volcano covered the entire old island, and formed a new much larger land mass reaching several hundred feet above sea level.
Multiple photographs from the air show the extent of the new lava flows. Credit to the Japanese Coast Guard:
Last months flyover (February 2015) was spectacular!