The eruption that began southwest of Kīlauea’s summit at approximately 12:30 a.m. HST this morning, June 3, has paused. However, activity in this region remains dynamic and could change quickly. HVO continues to closely monitor Kīlauea and will issue additional notices as needed.
...Fissure eruptions are often short-lived but can be difficult to forecast. They can display pauses of hours to days. The large crack system developed during the past day extends well past the westernmost active fissure, indicating that magma has been emplaced shallowly all the way to the east side of Maunaiki, where the most recent earthquake swarms are occurring. While the eruption today occurred due to the intrusion of new magma to the Southwest, it occurred in the vicinity of the dike that formed close to the surface on January 31, 2024. Continued input of newer, hotter magma could destabilize the stored magma. While the current eruption may be over, it is equally likely that it might resume at or to the west of the last active fissure.
https://www.usgs.gov/volcanoes/kilauea/volcano-updates