but allison granger is a vulcan ologist at the university of missouri. she says the nature of interruption makes it hard to put it direction is definitely changing. and this is not uncommon for this type of direction. so there's a lot more gaps, rich reaching the vent area, which is causing clues that go quite high person the ash, which is why we are a part of the life cycle style of okay. now, the biggest challenges that it's not predictable because lava and water can interact without explosion. but without notice that that can be true, quite explosive. so this happened commonly at any volcano, borders to see, but this is how the land is made. so the challenge will be keeping people at a distance during the whole time, which is very frustrating for people who live there. they don't get a discrete amount of time to stay away, however, they don't have to actively respond changes. okay, gotcha. really just polarize rock and the challenge with small and shirt, but it can do terrible damage to airplane engines. and so we've seen interruption in other places