web, cam, heat-sensing, instruments, keep, track, conditions, north, rim, pu, u, o, crater, where, cracks, that, have, been, years, widened, significantly, in, last, few, days, area, closed, due, to, increased, volcanic, activity, dark, interior, kiln, hornito, upper, end, pkk, lava, tube, was, dull, red, yesterday, no, flowing, through, petunia, trickle, entering, ocean, poupou, has, finally, ceased, large, southwest, flank, cone, indicate, collapse, puka, nui, mlk, vents, undermined, geologist, changes, data, card, time-lapse, camera, perched, east, jagged, edge, new, having, only, appeared, monday, newly, ground, mean, this, must, tread, carefully