HVO reported that the W vent on the inner NW wall of Kilauea's Halema`uma`u Crater continued to supply the lava lake during 31 March-6 April.
Lava flowed at a low rate from the main vent into the lake through crusted-over channels and submerged inlets.
The total depth of the lake measured about 226 m and lava continued to circulate in the W part; the E half of the lake remained solidified and expanded toward the W.
The sulfur dioxide emission rate was 1,200 tons/day on 1 April.
HVO field crews observed weak spattering from two areas at the W vent during 1-2 April.
The Aviation Color Code remained at Orange and the Volcano Alert Level remained at Watch.
Source: US Geological Survey Hawaiian Volcano Observatory (HVO)