Sakurajima volcano (Kyushu, Japan): stronger eruptions continue
Wednesday Mar 21, 2012 17:46 PM | BY: T
Sakurajima volcano on the Island of Kyushu, Japan, continues to be more active than usually at the moment. Yesterday, a stronger explosion occurred that produced an ash column reaching 3 km altitude (Flight Level 90 = 9,000 feet) which drifted to the south, as the Tokyo VAAC reported.
Based on pilot reports, ash plumes during 18-20 March were rising to altitudes of 1.2-4 km (4,000-13,000 ft) a.s.l. and drifted SE and E.
Thursday, Mar 15, 2012
Tokyo VAAC reported that during 7-9 and 11-13 March explosions from Sakura-jima often produced plumes that rose to altitudes of 1.2-2.7 km (4,000-9,000 ft) a.s.l. and drifted E and SE. Pilots observed ash plumes during 9 and 11-13 March that rose to altitudes of 1.8-3 km (6,000-10,000 ft) a.s.l. ... [more]
Wednesday, Mar 14, 2012
Moderately large eruptions have occurred at Mt. Sakurajima volcano in southern Kyushu, Japan. During the past few days, several vulcanian-type explosions took place that ejected large amounts of bombs, with some of 50 cm diameter landing in up to 2 km distance. Ash plumes produced reached a modest altitude of 8000 ft (ca. 2.5 km) (VAAC Tokyo). ... [more]
Thursday, Mar 08, 2012
Sakurajima volcano appears to be at higher levels of activity, as the last week has seen an increased average number and size of eruptions. According to the latest USGS / Smithsonian report "explosions during the past week "often" produced plumes that rose to altitudes of 1.2-3 km (4,000-10,000 ft) a.s.l. and drifted NW, E, and SE." Many obseervations of ash plumes originate of analysis of satellite data and dedicated Volcanic Ash Advisory Centers (VAAC) around the world monitor them and transmit real-time information about hazardous ash plumes to aircraft and air traffic control centers. Such reports are often complemented by direct observations from pilots passing nearby. ... [more]
Tuesday, Feb 28, 2012
Explosions on 22 and 24 February produced plumes that rose to altitudes of 1.5-1.8 km (5,000-6,000 ft) a.s.l. and drifted NE. [more]
Thursday, Feb 23, 2012
Tokyo VAAC reported that during 15-16 and 18-21 February explosions from Sakura-jima produced plumes that rose to altitudes of 1.8-2.4 km (6,000-8,000 ft) a.s.l. and drifted NE, E, and SE. [more]