During 11-17 April HVO reported that the lava lake continued to rise, fall, and spatter in Kilauea?s Overlook crater.
The lake level was high, with spattering visible from HVO and Jaggar Museum; by 16 April the lake level was 10 m below the rim of the Overlook crater.
Surface lava flows were active above Pulama pali.
On 11 April a moderate swarm of over 200 earthquakes occurred at depths of 7-9 km below the summit.
The largest event was a M 2.4.
Seismicity returned to background levels at 0230.
Three minor ledge collapses were detected on 12 April, one at 1157 and two just after 1830.
Surface lava flows were active above Pulama pali; on 13 April most scattered breakouts were within 2.2 km from Pu'u 'O'o Crater, and one was about 5 km away.
Source: US Geological Survey Hawaiian Volcano Observatory (HVO)