Japan's weather agency on Wednesday raised its alert level for Mt. Ontake in the central part of the country, warning against going near its crater as volcanic earthquakes have increased.The level-2 alert for the 3,067-meter volcano straddling Nagano and Gifu prefectures is the first since Aug. 21, 2017, with the Japan Meteorological Agency warning about the possibility of flying rocks around the 1-kilometer area from the crater on the mountain's summit.It was moved up from level 1, meaning "potential increased activity." The agency has a five-scale volcanic alert system.On Wednesday, there…READ FULL ARTICLE