HVO/USGS Volcanic Activity Notice
Volcano: Kilauea (VNUM #332010)
Current Volcano Alert Level: WARNING
Current Aviation Color Code: ORANGE
Issued: Friday, September 19, 2014, 5:59 PM AKDT (20140920/0159Z)
Source: Hawaiian Volcano Observatory
Notice Number: 2014/H7
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 17 and 19, the June 27th flow continued to advance northeastward at a slower average rate of 190 m/day (625 ft/day). By midday on September 19, the flow had advanced approximately 16.3 km (10.1 mi) straight-line distance from the vent across the vacant, forested northwest portion of Kaohe Homesteads. Using the most recent rate of advancement of 190 m/day (625 ft/day) between September 17 and 19, we project that lava could flow from its current location to Apa`a St. in 13 days, to the Pāhoa Village Road (government road) in Pāhoa within 18 days, and highway 130 in 21 days. These estimates will be updated after our next overflight to be scheduled early next week.
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 northeast since September 17 at a slower rate of 190 m/day (625 ft/day).
Hazard Analysis:
[Lava flow] Lava flow from Pu'u 'Ō'ō vent crossed the vacant, forested northwest corner of Kaohe Homesteads and could reach the Pāhoa Village Road (government road) within 18 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 225 m/day (740 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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