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April 12, 2023 — HVO Upgrades Hualālai Repeater

Detailed Description

During the week of April 10, Hawaiian Volcano Observatory technicians upgraded the Hualālai repeater site, which is an important telemetry hub for volcano monitoring data. The site is located on the southeast side of Hualālai, at an elevation of 2,160 meters (7,090 feet) above sea level. This photo, taken after the upgrades were completed, shows the site enshrouded in fog. Upgrades included replacing the batteries, installing a new electronics system and box, and installing a new webcam looking at Mauna Loa (HLcam: [HLcam] - Mauna Loa's northwest flank from Hualālai volcano | U.S. Geological Survey ( The station upgrades and new webcam were funded by the USGS Additional Supplemental Appropriations for Disaster Relief Act of 2019 (H.R. 2157, provided in response to Kīlauea’s 2018 lower East Rift Zone eruption and summit collapse). USGS image by M. Warren.


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