#12 hours and 37 minutes

Update: Lava fountains end abrubtly, bringing Episode 13 of ongoing Kīlauea eruption to close

Hawaiian Volcano Observatory reported geysers of molten rock ceased from north vent at 3:11 p.m. March 11 and then just 2 minutes later from south vent after just 12 hours and 37 minutes of eruptive activity in Halemaʻumaʻu Crater.