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Photo and Video Chronology - Kīlauea - December 12, 2019

By Kīlauea December 12, 2019

Kīlauea summit lake observation and Keller Well measurements, December 2019

Measuring Kīlauea summit lake on December 12

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The large rock that was visible at the eastern end of Kīlauea's summit crater lake on November 28 (marked by white circle on left photo) is now submerged, and the water level continues to slowly rise. Today (right photo), the vertical distance between the water surface and the tripod on the crater rim was measured at about 601 m (1972 ft). USGS photo by K. Mulliken, 12-12-2019.(Credit: Public domain.)
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HVO scientists continue to monitor Kīlauea's summit lake on near-daily trips. A laser rangefinder is used to measure the distance between the lake surface and the person holding the laser rangefinder on the crater rim, allowing the slow rise of the crater lake to be tracked through time. USGS photo by K. Mulliken, 12-12-2019. (Public domain.)

Keller Well measurements and water sampling on December 10

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On Tuesday, December 10 HVO staff visited Keller Well, a deep borehole at the summit of Kīlauea, to take quarterly measurements and samples. This photo shows an extra long measuring tape, which has a sensor attached to the end, being lowered into the well to measure the distance to the top of the water table. The depth to the water was measured at approximately 511 m (1677 ft) below the ground surface, which is nearly 20 ft (6 m) deeper than the last measurement taken on September 24. USGS photo by L. DeSmither (Public domain.)
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After collecting a sample from the well using the narrow sampler shown, HVO staff transfer the water sample into a container. The water is collected periodically for chemical analyses so that changes in the water composition can be tracked. For more information about the Keller Well, please see HVO's Dec. 20, 2018, "Volcano Watch" article USGS photo by L. DeSmither. (Public domain.)

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