Hawaii Lava Flow Hazard Zone Maps
In the Hawaiian Islands, there are six volcanoes classified as active: Kīlauea, Mauna Loa, Hualālai, and Mauna Kea on the island of Hawai‘i; Lō‘ihi, a submarine volcano southeast of Hawai‘i Island; and Haleakalā, on the island of Maui.
Nine lava-flow hazard zones for the volcanoes on Hawai'i Island (Kilauea, Mauna Loa, Mauna Kea, Hualalai, and Kohala) are shown on the map.
No, the hazard zone boundaries are approximate and gradational.
The hazard zones are based on the locations of probable eruption sites (based on past eruption sites), the likely paths of lava flows erupted from those sites (based on topography and the paths of previous lava flows), and the frequency of lava flow in
A rift zone is marked by vents through which lava is erupted. In other words, it is the first place that lava appears out of the ground and, therefore, the starting point of lava flows that can then travel downhill.
The map was designed primarily to provide information for general planning purposes, so that critical community facilities could be sited in the safest possible areas.
Yes, the map is still accurate.The map is intended to communicate long-term lava-flow hazards, rather than short-term hazards, which can change daily during periods of eruptive activity.
The Lava Flow map reflects long-term lava-flow hazards based on geologic data—the behavior of Hawaiian volcanoes over decades to centuries, the distribution and ages of lava flows and volcanic vents, the structure of the volcano, and topography.
The principal author of the 2006 paper by D.R.
For East Maui, which includes the active volcano Haleakalā (right), the most current lava-flow hazard zone map can be found in a 2006 paper by D.R. Sherrod and others, available online.
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