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Structure-from-motion techniques use photographs taken from different angles to reconstruct the three-dimensional shape of an object. At Kīlauea, this technique has been used to rapidly generate maps of eruption activity from aerial imagery, allowing scientists to quantify changes over time such as the volume of lava erupted and surface area covered by lava. Join USGS […]
Join USGS Hawaiian Volcano Observatory retired geologist Don Swanson on a virtual field visit to an exposure of the Keanakāko‘i Tephra near the summit of Kīlauea as part of Volcano Awareness Month. This exposure shows deposits of explosive eruptions of Kīlauea between 500 and 230 years ago, from just after the modern caldera formed to […]
Following the lower East Rift Zone eruption and summit collapse of Kīlauea in 2018, the volcano remained quiet for more than two years. Lava returned to Kīlauea in December 2020, boiling off the water lake that had been present at the base of Halema‘uma‘u crater, and starting a five-month long eruption in Hawai‘i Volcanoes National […]
0 New: – Second West Vent now intermittent after big pulse – Pressure stable, dropping once again – Lava lake depth still 202 m / 663 ft under West Vent – Stagnant south crust still rising, lifting inactive north vent cone – Gas emissions back down to 2500 t/d, but still significant As the 2020-21 […]