of the newest fissures. we listened to this a moment ago. describe what it s like being so close to one of these vents. reporter: we re about half mile so if fissure is right behind me. the new one that s popped p today. it s like a massive explosion. it just keeps battering the house and it shakes and it s like an explosion going off every ten minutes. is that what we re hearing? is that what that is? reporter: you hear like a jet engine sound. that s constant. that the explosions that we hear. that s small and quiet right now. every once in while we get a loud burst and it shakes everything and the whole house moves for a brief sektd. it s pretty intense.