PVMBG reported that during 10-16 September the new lava dome in Merapi?s summit crater continued to slowly grow.
By 16 September the volume of the lava dome was an estimated 112,000 cubic meters, and the growth rate was 1,600 cubic meters per day.
White emissions of variable density rose 20 m above the summit.
The Alert Level remained at 2 (on a scale of 1-4), and resident were warned to remain outside of the 3-km exclusion zone.
Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)