Despite it being safe, if you're visiting Big Island soon, you may have to tweak your itinerary. Most of Hawaii Volcanoes National Park, the largest national park and a major tourist attraction, closed due to the unpredictability of ash fall. Attractions like the Mauna Kea Observatory and beaches are open. The Kilauea volcano is one of the most active in the world and has been low-level erupting since 1983, the year of a 6.3 magnitude earthquake. Destructive events like the recent eruption are uncommon.