Sunday, March 31, 2013

“Mt. Fuji Should Erupt by 2015”: Ryuku University Professor Emeritus

Since the Great Tohoku Earthquake of March 2011, scientists have been anxiously watching the massive volcano known as Mt. Fuji for signs of activity. In September of last year, a report was released stating that Mt. Fuji’s magma chamber pressure had risen to a worrisome 1.6 megapascals, which is estimated to be higher than when it last erupted.

According to retired professor Masaki Kimura of Ryukyu University, this and other recent phenomena indicate an eruption of Mt. Fuji should have taken place in 2011 with a four-year margin of error ending in 2015.

First, a little background on Mt. Fuji. Japan sits on the edge of a “subduction zone” which is where one layer of the Earth’s crust is pushed under another. In the below image, courtesy of Google Maps, you can see the trench along which subduction is occurring around Japan.