05-03-2018, 02:00 AM
In the interest of raising awareness and discouraging complacency: although the likelihood of a Mt. St. Helens eruption is unlikely for the ERZ, the Pawai and Puulena craters are thought by some to have resulted in explosive interaction between magma and groundwater that generated a substantial ash blanket that extended for several kilometers around those craters. I believe Dick Moore from the USGS mapped that ash layer back in the 1980's. We don't have any data on the sequence of events that may occur - or the rate at which things could go sideways - so, IMHO, everyone in the vicinity of Leilani Estates should prepare for a fairly quick evacuation.