#Halemaumau reservoir

Kīlauea began erupting from fissures southwest of Kaluapele (the summit caldera) just after midnight on June 3; the eruption ceased just nine hours later, though lava flows continued to slowly spread for several more hours. Prior to the brief eruption, the USGS Hawaiian Volcano Observatory (HVO) had been monitoring pulses of heightened seismic activity in the summit area for weeks.