PVMBG reported that during 28 June-4 July the lava-dome volume at Merapi did not significantly change and was an estimated 475,000 cubic meters, based on analyses of drone images taken on 4 July.
Extruded lava fell into the upper parts of the SE flank, generating one block-and-ash flow that traveled 1.1 km down the Gendol drainage on 1 July.
White plumes rose as high as 200 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)