A volcano on a southwestern Japan island erupted early Friday, sending large rocks almost 1 kilometer from the crater and prompting the weather agency to raise its alert by one level to restrict entry into the area surrounding the mountain.The eruption occurred at the crater of Mt. Otake on Suwanose Island of Kagoshima Prefecture at around 2:12 a.m. There were no immediate reports of injuries, according to local authorities.The Japan Meteorological Agency raised its alert level to 3 on a scale of 5, meaning that people should not approach the mountain. The agency also warned of the potentia…READ FULL ARTICLE