Precursory lava flows have begun at Kīlauea

Precursory lava overflows began at Kīlauea within Hawai‘i Volcanoes National Park early Thursday at 2:57 a.m., with the onset of episode 47 lava fountaining forecasted at any time.

Lava is flowing from the south vent in the Halemaʻumaʻu crater. As of 7 a.m., there have been six overflows, each lasting 20–30 minutes, according to an update from the Hawaiian Volcano Observatory. Glow, flames, and occasional spattering have been observed at the north vent.

Lava fountaining could start at any time now, though precursory activity—overflows and more vigorous spattering—may continue for hours or more.

Overnight webcam views showed a strong glow and periodic flaming at the Halemaʻumaʻu south vent until 2:57 a.m. when overflows began. Degassing continues from both the vents and the surrounding area in the western part of Halemaʻumaʻu crater.

Steady seismic tremor continues, with a few small bursts in association with the observed south vent overflows in Halemaʻumaʻu. Earthquake activity at the summit during and after episode 46, which occurred on May 5, has been low.

No significant activity has been noted along Kīlauea’s East Rift Zone or Southwest Rift Zone.