Puna News–HVO Sept. 10 Report: Lava 1.5 days from Kaohe Subdivision

Issued: Wednesday, September 10, 2014, 7:21 PM HST (20140911/0521Z)
Source: Hawaiian Volcano Observatory
Notice Number: 2014/H3
Location: N 19 deg 25 min W 155 deg 17 min
Elevation: 4091 ft (1247 m)
Area: HI Hawaii and Pacific Ocean

Volcanic Activity Summary: Between September 6 and 10, the June 27th flow advanced north then northeastward at an average rate of 400 m/d (0.25 mi/d). In this way, the flow had advanced approximately 14.5 km (9.0 miles straight-line distance) from the vent, or to within 0.6 km (0.4 miles) of the eastern boundary of the Wao Kele o Puna Forest Reserve, by the afternoon of September 10. At the average rate of advancement of 400 m/day (0.25 mi/day) since September 6, we project that lava could flow from its current location to the northwest edge of Kaohe Homesteads in 1.5 days and to the Pahoa Village road (government road) in Pahoa within 14-16 days if lava is not further confined within the cracks and down-dropped blocks within the East Rift Zone of Kilauea volcano. These estimates will be continually refined as we track this lava flow.

Kaohe Homesteads is located between the Wao Kele o Puna Forest Reserve and the town of Pahoa in the Puna District of the County of Hawai`i.

Recent Observations:
[Lava flow] Lava flow turned to the northeast and is advancing at a rate of 400 m/day (0.25 mi/day).

Hazard Analysis:
[Lava flow] Lava Flow from Pu‘u ‘O‘o vent could reach the northwest edge of Kaohe Homesteads in 1.5 days and the government road in P?hoa within 14-16 days.

Remarks: The Pu‘u ‘O‘o vent in the East Rift Zone of K?lauea Volcano began erupting on January 3, 1983, and has continued erupting for more than 31 years, with the majority of lava flows advancing to the south. Over the past two years, lava flows have issued from the vent toward the northeast. The June 27th flow is the most recent of these flows and the first to threaten a residential area since 2010-2011. On June 27, 2014, new vents opened on the northeast flank of the Pu‘u ‘O‘o cone that fed a narrow lava flow to the east-northeast. On August 18, the flow entered a ground crack, traveled underground for several days, then resurfaced to form a small lava pad. The sequence was repeated three more times over the following days with lava entering and filling other cracks before reappearing at the surface, in two of the cases farther downslope. Lava emerged from the last crack on September 6 and moved as a surface flow to the northeast.

Contacts: HVO media contact

Next Notice: A new VAN will be issued if conditions change significantly or alert levels are modified. While this VAN is in effect, regularly scheduled updates are posted at http://hvo.wr.usgs.gov/activity/kilaueastatus.php


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