Answer:
According to NASA, the vog moves in south-west direction.
Explanation:
On May 2018 eruptions of Kilauea, the vog is being transported by the dominant winds in the direction where wind is blowing. On the basis of information provided by NASA, the vog which is emitted from the volcano moves in south-west direction by trade winds. The vog moves in south-west direction because the winds were also moving in that direction and as a result the vog is dispersed on a large area.