Now, now, now. There are explosive-type volcanoes, like the ones on the west coast of the US and the whole "ring of fire," and volcanoes that just flow. Explosive volcanoes have lava that is thick and viscous. When pressure builds up behind a plug in a volcanic vent, there can be huge explosions, on the order of hydrogen bombs and greater.
Hawaiian volcanoes, like Icelandic volcanoes, have very fluid lavas that tend to just flow freely. You'll never see a massive volcanic explosion there, the way we saw with Mt. St. Helens, Mt. Pinatubo, Krakatoa, etc. You do get lava flows that might cover a housing development if one is built in an unfortunate location in Hawaii, but that's not a tourist's problem.