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Lava Flow Nearing Residences in Pāhoa, Hawaii

Posted by feww on October 28, 2014

SCENARIOS 989, 900, 797, 787, 707, 444, 402, 070, 047, 017, 07, 02

Kīlauea continues to erupt,

Active lava flows can produce methane blasts, propelling rocks and other debris into the air, said HVO.

Kilauea Status Reports, Updates, and Information Releases  issued by the Hawaiian Volcano Observatory (HVO)

Monday, October 27, 2014 5:51 PM HST (Tuesday, October 28, 2014 03:51 UTC)

  • The advance rate of the narrow leading edge varied between 7 and 10 meters (8 and 11 yards) per hour today, which is equivalent to 170 and 240 meters (185 and 260 yards) per day. As of 4:30 PM, the flow was 510 meters (560 yards) upslope from Pāhoa Village Road; the flow width was about 50 meters (55 yards) at the leading edge.
  • The most recent sulfur-dioxide emission rate measurements for the summit were 2,700–3,600 tonnes/day (see caveat here) for the week ending October 21, 2014. A small amount of particulate material was carried aloft by the plume.
  • Potentially-lethal concentrations of sulfur dioxide gas may be present within 1 km downwind of vent areas.

The June 27th lava flow remained active, and the flow front was nearing residential areas in the northwest portion of Pāhoa. The flow front was heading towards a low spot on the Pāhoa Village Road, between Apaʻa St. and the post office. This photo was taken at 11:30 am HST on Monday, when the flow front was 540 meters (0.3 miles) from Pāhoa Village Road. Source: HVO

This annotated photograph shows the notable features around the flow front. The photo was taken at 11:30 am, and also shows the distance the flow front has traveled between Cemetery Rd./Apaʻa St. and Pāhoa Village Rd. Source: HVO

A comparison of a normal photograph with a thermal image. The white box shows the approximate extent of the thermal image. The elevated temperatures (white and yellow areas) around the flow front indicate that significant activity is focused at the front, driving its forward movement. In addition, a slow-moving lobe was active upslope of Cemetery Rd. Farther upslope, scattered breakouts persist in the wider portion of the flow.  Source: HVO

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