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Figure 5. Example map from the SO2 forecast available at https://weather.hawaii.edu/vmap/hysplit/ <br /> <br />Increased distribution of tephra fall <br />At the moment, lava from fissure 8 erupts from a 60 -80 -m -long fissure segment. Discharge from the <br />fissure was initially characterized by relatively steady low fountaining but has evolved into more chaotic <br />Strombolian (large bubble bursts) activity. If the eruption begins to coalesce into single point along the <br />fissure, higher fountains (100-300 m) could be produced. This would result in more widespread <br />deposition of Pele's hair and cinder. Pele's hair has already been reported several times in Pahoa (about <br />5 km or 3 mi northwest of fissure 8 fountains) during slack or southerly winds. Both the 1955 and 1960 <br />eruptions in the same general area produced fountains much higher than what has been seen thus far <br />during the current eruption. <br />Tephra fall from 100-300 m fountains could produce a 30 cm (1 ft) deposit several hundred meters <br />(yards) downwind. This deposit may be thinner if the wind is variable and spreads the tephra laterally. <br />Previous eruptions produced a 30 cm (1 ft) thick deposit up to 625 m (2,000 ft) downwind from the vent <br />at Kilauea Iki, 1.6 km (1 mi) downwind from the vent at Mauna Ulu, and 900 m (3,000 ft) from the vent <br />at Pu'u 'O'o. <br /> <br />7 <br />