The Sakurajima volcano on Japan’s Kyushu island poses a “growing threat”, researchers at the University of Bristol say.
The volcano, located 49km (30 miles) from the Sendai nuclear plant, is also close to Kagoshima, a city of 600,000.
Sakurajima’s last deadly eruption was in 1914, when 58 people died.
The Japanese archipelago, which sits on the Pacific “Ring of fire”, has more than 100 volcanoes. Sakurajima regularly spews ash and there are many small explosions there each year, with the latest eruption being in February.
It is closely monitored by Japanese authorities and one of two volcanoes at Level 3 out of 5 levels in Japan’s volcanic warning system, which means that people are warned not to to approach the volcano.
“The 1914 eruption measured about 1.5km cubed in volume,” said the study’s lead author Dr James Hickey, who has now joined the University of Exeter’s Camborne School of Mines.
“From our data we think it would take around 130 years for the volcano to store the same amount of magma for another eruption of a similar size – meaning we are around 25 years away.”
A report on the activity of the volcano was published on Tuesday and teams from Bristol University and the Sakurajima Volcano Research Centre took part.
One of Japan’s most active volcanoes is due for a major eruption within the next 30 years, say scientists who have studied a build-up of magma there. (BBC)
A 55-year-old woman and her parents were found dead at an apartment building in Asahikawa, Hokkaido, on Tuesday, following an emergency call her husband, 62, made after returning from work. (Jiji Press)
The Hiroshima High Court on Tuesday denied an appeal by a 66-year-old man sentenced to death for the murders of five people in the mountain hamlet of Shunan, Yamaguchi Prefecture, in July 2013. (Japan Today)
Since an alligator gar was first spotted in the moat of Nagoya Castle seven years ago, repeated attempts to catch the carnivorous nonnative fish have been unsuccessful, raising concern over the adverse impact on the ecosystem around the central Japan landmark. (Jiji Press)
Male officials of Japan’s central government and government-affiliated independent administrative agencies who took child care leave accounted for 9.5 pct in fiscal 2015, the highest proportion since the leave system was introduced for those raising children in 1992, a government survey showed Tuesday. (Jiji Press)
Japan’s medical expenses in fiscal 2015 rose 3.8 pct from the previous year to 41,462.7 billion yen, topping 40 trillion yen for the first time, the health ministry said in a preliminary report Tuesday. (Jiji Press)
Japan’s Fair Trade Commission raided nine companies on Tuesday over suspected bid-rigging for uniforms delivered to East Japan Railway Co., or JR East, and West Japan Railway Co., or JR West, in violation of the antimonopoly law. (Jiji Press)
The operator of the Fukushima Daiichi nuclear power plant has resumed work to remove a temporary cover from a damaged reactor building. (NHK)
Japan’s Kaori Icho, a four-time Olympic gold medalist in women’s wrestling, is to receive the People’s Honor Award. (NHK)
Two U.S. B-1B strategic bombers on Tuesday conducted training with Japan Air Self-Defense Force fighter jets just before flying over the Korean Peninsula with South Korean aircraft in response to North Korea’s nuclear test Friday. (Jiji Press)