The relevant sources for each feature are assigned in the metadata attribute tables, but a lookup table for the data sources (DataSource.txt) is also included for convenience. The current map divides the island into zones that are ranked from 1 through 9 based on the probability of coverage by lava flows. Geological Survey and were revised in 1987. Geological Survey's Advanced Systems Center, or were (in a few instances) inferred. Maps showing volcanic hazard zones on the island of Hawaii were first prepared in 1974 by Donal Mullineaux and Donald Peterson of the U.S. The geologic lines (lava flow contacts, the eruptive fissures, the ground cracks, and the lava tubes) were mapped on the ground or during helicopter reconnaissance flights using a handheld GPS, were digitized from satellite imagery or orthorectified aerial imagery (orthomosaics), were provided by the U.S. In total, this dataset contains four shapefiles, each with an associated metadata files in. This map shows lava-flow hazard zones for the five volcanoes on the Island of Hawaii. The dataset also contains (3) an attributed polyline shapefile with features that represent the eruptive fissures associated with this episode of the eruption and the principle ground cracks that were occupied by lava during lava flow emplacement, and (4) an attributed polyline shapefile with features representing the mapped extent of the active lava tube on six different dates. Inouye Highway, aka Saddle Road, while an eruption viewing traffic pattern. AP Hawaii’s Mauna Loa volcano lava flow map. description: The boundaries and classification of lava flow hazard zones on Hawaii Island were first mapped by the US Geological Survey in 1974. The dataset contains (1) an attributed polyline shapefile and (2) an attributed polygon shapefile with features that represent the outline and extent of the flow on 35 different dates. HAWAII ISLAND - As of Thursday evening, the lava flow front is about 3.2 miles, or 5.2 kilometers, from the Daniel K. AP Photo/Gregory Bull This eruption map shows the current lava activity extent as of Nov. The thing we can say is that at this kind of rate, it would take at least a week for it to reach the highway," Hon said.This dataset contains shapefiles and associated metadata showing evolution of the "June 27th" lava flow (Puʻu ʻŌʻō eruptive episode 61e) that was active at Kīlauea volcano from June 27, 2014, to June 8, 2016. HVO field crews and USGS analysts have accurately mapped some of the most active flows, displayed in red. One active fissure, fissure 3, is feeding a lava flow downslope to the north. Officials have been preparing for the possibility for weeks and said detour routes are clear of obstructions in the event motorists will be forced to use other roadways. The Northeast Rift Zone eruption of Mauna Loa has continued into its eigth full day. The critical route remains open, but if lava reaches the roadway, a shutdown would essentially double travelers’ commute times as there is no other shorter route around the volcano. WHAT MAKES ‘PELE’S HAIR’ DURING A VOLCANIC ERUPTION? Detailed Description Lava-flow hazard zones map, Island of Hawai‘i. Mauna Loa, the worlds largest active volcano, erupted Monday for the first time in 38 years. So it sometimes it might appear to be moving faster and sometimes appear to be not moving at all," said Ken Hon, scientist-in-charge of the Hawaiian Volcano Observatory. Maps showing volcanic hazard zones on the island of Hawaii were first prepared in 1974 by Donal Mullineaux and Donald Peterson. A river of lava flows down from Mauna Loa, Monday, Nov. Lava flow hazard zones and districts of the County of Hawaii are also depicted. It will inflate, incoming lava will be stored in it, and then it will probably come out in lobes at different times. Map showing the subaerial extents of historical lava flows from Mauna Loa. "We expect from here on in for the movement of this flow to become somewhat sporadic as it goes across the flat ground. At last report, lava was around two miles from the busy roadway, but the flow had slowed significantly because of the flatter terrain. Lava-flow hazard maps are designed to show relative hazard across the Island of Hawaii and are meant to be used for general planning purposes only.
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