Explosive Eruption at Sangeang Api in Indonesia

The eruption column at Sangeang Api, seen on May 30, 2014. Image: Vira Azzukhruf, used by permission. New reports from Indonesia tell of an sizable explosive eruption that occurred today at Sangeang Api (see above). These news reports suggest ash falling upwards of 30 km from the volcano with a 3 km (10,000 foot) ash plume while the Darwin VAAC warning of the eruption lists ash spotted by pilots as high as 20-50 km (65,000-164,000 feet) as the ash drifts to the southeast. Now, these plume heights are wildly different and some of the images on Twitter suggest the plume is on the closer to the 20 km than 3 km height, but hopefully forthcoming reports will make the actual height clearer to understand. UPDATE (8:30 AM EDT): Here is a great image of the start of the eruption, with the plume rising rapidly. The only evacuation orders so far ...