USGS: “Flow Moves Closer to Kaohe Homesteads”
The following photos and video were released by the Hawaiian Volcano Observatory (USGS) (Dated September 10, 2014) . Note: these photos and video were not taken in areas currently accessible to the public. (You can visit the official website of Hawai’i Volcanoes National Park for current information on the areas of Kilauea that are open to public). Click here to see photos from previous post.
HAWAIIAN VOLCANO OBSERVATORY DAILY UPDATEThursday, September 11, 2014 9:27 AM HST (Thursday, September 11, 2014 19:27 UTC)
This report on the status of Kilauea volcanic activity, in addition to maps, photos, and Webcam images (available at http://hvo.wr.usgs.gov/activity/kilaueastatus.php), was prepared by the USGS Hawaiian Volcano Observatory (HVO). All times are Hawai`i Standard Time.
KILAUEA VOLCANO (VNUM #332010)
19°25’16” N 155°17’13” W, Summit Elevation 4091 ft (1247 m)
Current Volcano Alert Level: WARNING
Current Aviation Color Code: ORANGE
Activity Summary: Kīlauea continued to erupt at its summit and within the East Rift Zone, and gas emissions remained elevated. Summit inflation continued, with a slight rise in lava level. At the middle East Rift Zone, the front of the June 27th flow continues to advance through forest near Kaohe Homesteads, and surface breakouts are also present closer to Puʻu ʻŌʻō.
June 27th Lava Flow Observations: The June 27th lava flow remains active. An HVO overflight yesterday afternoon observed that the flow front had shifted towards a more northeast direction, bringing it closer to the western boundary of Kaohe Homesteads (which is the eastern boundary of the Wao Kele o Puna forest reserve). The flow front at 2:45 pm yesterday was 14.5 km (9.0 miles) from the vent, measured in a straight line, and 0.6 km (0.4 miles) from the Forest Reserve/Kaohe Homesteads boundary. The actual length of the flow, measured along the lava tube axis (so that bends in the flow are considered) is 16.6 km (10.3 miles). Between September 6 and 10, the flow front has advanced at approximately 400 meters (460 yards) per day. The flow front is still in thick forest, creating smoke plumes as it engulfs trees and other vegetation, but fires are not spreading away from the flow.
Small breakouts also remain active closer to Puʻu ʻŌʻō, roughly midway along the length of the June 27th flow. None of these breakouts have been very vigorous recently, but are also producing smoke plumes as they creep into the adjacent forest.
Puʻu ʻŌʻō Observations: There was no significant change in tilt at Puʻu ʻŌʻō over the past day. Glow was visible overnight above several outgassing openings in the crater floor. Aerial views yesterday found small lava ponds within the northeast, north, and south pits. The southeast pit had a new lava pond with a small flow erupting onto the crater floor. The most recent sulfur-dioxide emission-rate measurement for the East Rift Zone was 400 tonnes per day (from all sources) on September 2, 2014.
Summit Observations: Inflation continued at Kīlauea’s summit. The lava lake level rose slightly and was roughly 55 m (180 ft) below the Overlook crater rim this morning. There was no major change in seismicity over the past day; seismic tremor at the summit remained low and varied with changes in spattering on the surface of the lava lake. GPS receivers spanning the summit caldera recorded about 5 cm (2 in) of extension between early May and early July. Since then, GPS line length has tracked changes in ground tilt. During the week ending on September 9, 2014, the elevated summit sulfur-dioxide emission rate was measured at 3,300–7,600 tonnes/day (see caveat below), and a tiny amount of particulate material was carried aloft by the plume.