At 09:58 UTC on May 19 (23:58 HST, May 18), a short-lived explosion at Halema'uma'u created an ash cloud that reached up to 4 km (10 000 feet) above sea level and was carried southwest by the wind. Possible trace ash fall may have occurred along Highway 11, the Hawaii Volcano Observatory said in their 11:33 UTC update.
The eruption of lava and ground cracking in the area of Leilani Estates subdivision continues.
A fast-moving pahoehoe lava flow that emerged from fissure 20 during the afternoon hours of May 18 (local time) continues to flow southeast. The flow has three main lobes.