HVO/USGS Volcanic Activity Notice
Volcano: Kilauea (VNUM #332010)
Current Volcano Alert Level: WARNING
Current Aviation Color Code: ORANGE
Issued: Wednesday, September 17, 2014, 7:42 PM AKDT (20140918/0342Z)
Source: Hawaiian Volcano Observatory
Notice Number: 2014/H6
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 15 and 17, the June 27th flow narrowed and advanced northeastward at an average rate of 290 m/day (960 ft/day). By the afternoon of September 17, the flow had advanced approximately 16 km (10 mi) straight-line distance from the vent into the vacant, forested northwest portion of Kaohe Homesteads. At the average rate of advancement of 290 m/day (960 ft/day) since September 15, we project that lava could flow from its current location to Apa`a Rd in 9 days and to the Pāhoa Village Road (government road) in Pāhoa within 13 days. These estimates will be updated after our next overflight scheduled for Friday.
Kaohe Homesteads is located between the Wao Kele o Puna Forest Reserve and the town of Pāhoa in the Puna District of the County of Hawai`i.
Recent Observations:
[Lava flow] Lava flow continued to advance north-northeast and has narrowed and accelerated slightly since September 15 to a rate of 290 m/day (960 ft/day).
Hazard Analysis:
[Lava flow] Lava flow from Pu'u 'Ō'ō vent is within the vacant, forested northwest corner of Kaohe Homesteads and could reach the Pāhoa Village Road (government road) in Pāhoa within 13 days.
Remarks: The Pu'u 'Ō'ō vent in the East Rift Zone of Kīlauea 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 'Ō'ō cone and 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. This 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, forming a surface flow that initially moved to the north, then to the northeast, at a rate of 400 m/day (1,300 ft/day). The flow slowed thereafter and, since September 12, the rate of advancement has varied averaging 245 m/day (805 ft/day).
Contacts: HVO media contact
askHVO@usgs.gov
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
The Hawaiian Volcano Observatory is one of five volcano observatories within the U.S. Geological Survey and is responsible for monitoring volcanoes and earthquakes in Hawai`i.
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