File:Measuring Lava Lakes (25782395534).jpg

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Description Measuring Lava Lakes — HVO geologist uses a laser rangefinder to measure the depth of the lava lake at the summit of Kīlauea in the Overlook crater. On April 8th, the lake level was about 58 m (190 ft) below the crater rim that afternoon. In previous days the lake level had dropped about 35 m (115 ft) as tiltmeters at the summit have recorded a larger than usual deflationary trend. The spattering of the lava lake (middle right of photograph) was triggered by a small rockfall from the north crater wall directly above. Large rockfalls into the lake typically cause small explosions that hurl molten lava onto the rim of Halemaʻumaʻu Crater, one of the hazards of this area. The tripod in lower right supports one of the webcams used to track activity of the lava lake.
Date
Source Measuring Lava Lakes
Author U.S. Geological Survey from Reston, VA, USA

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This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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This image was originally posted to Flickr by U.S. Geological Survey at https://flickr.com/photos/27784370@N05/25782395534 (archive). It was reviewed on 19 January 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

19 January 2018

Public domain
This image is in the public domain in the United States because it only contains materials that originally came from the United States Geological Survey, an agency of the United States Department of the Interior. For more information, see the official USGS copyright policy.

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current21:26, 19 January 2018Thumbnail for version as of 21:26, 19 January 20183,264 × 2,448 (596 KB)Artix Kreiger 2 (talk | contribs)Transferred from Flickr via Flickr2Commons

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