PVMBG reported that during 1-12 March white-and-gray emissions of variable density rose as high as 1 km above Merapi?s summit.
The volume of the lava dome was 470,000 cubic meters on 5 March, as estimated from drone photographs, and relatively unchanged from the previous weeks.
There were no apparent morphological changes; most of the extruded lava fell into the upper parts of the Gendol River drainage on the SE flank.
Block-and-ash flows traveled 500-1,900 m down the Gendol drainage on 2, 3, and 7.
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)