Three studies describe different parts of the 2018 Kīlauea caldera collapse

From the article:

[A] group from the U.S. Geological Survey reported that the eruption led to the collapse and not the other way around, as some had suggested. They also found that it took surprisingly little released magma during the initial stages of the collapse to instigate the larger collapse that followed—just 3.5 to 4 percent of the magma in the lava lake.
A second team [...] found that pockets of different types of magma from the collapse helped build what they describe as an advancing dike that played a role in the formation of a new underground system.