The current volcanic eruption on the Big Island is in the same area where DH and I went to see the lava (but never got there). I rode in an ambulance through the area of Leilani Estates and Pahoa. We had an excellent lunch in a Thai restaurant in Pahoa.
You can usually get out of the way of a lava flow as they tend to be slow, but when a lava fountain is throwing tons of hot molten lava hundreds of feet in the air you simply do not want to be there.
Then the sulfur dioxide gas - add that to the moisture in your nasal passages, bronchial tubes and lungs and you have instant sulfuric acid. Highly not recommended.