PVMBG reported that during 3-10 June the lava-dome volume at Merapi did not change and was an estimated 458,000 cubic meters, based on analyses of drone footage.
Extruded lava fell into the upper parts of the SE-flank, generating one block-and-ash flow that traveled 1 km down the Gendol drainage on 9 June.
White plumes rose as high as 75 m above the summit.
The Alert Level remained at 2 (on a scale of 1-4), and residents were warned to remain outside of the 3-km exclusion zone.
Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)