Ruapehu

New Zealand Geological Survey volcanologist Brad Scott conducts theodolite measurements at the Crater Lake vent in 1988 at the summit of Ruapehu volcano. Measurements of the lake height, temperature and chemistry are made routinely, and along with seismic instrumentation, are used to help forecast future activity of the volcano. Intermittent steam explosions from beneath the lake have produced lahars, which have damaged ski facilities on the upper flanks and structures in river valleys below the volcano.

Type/Process: Volcano Monitoring
Volcanic Status: Historical
Image Number: 016-023
Photographer: Don Swanson (U.S. Geological Survey)
Summit Elevation: 2797 meters
Latitude/Longitude: 39.28 S / 175.57 E
Timeframe: Last known eruption 1964 or later
Region: New Zealand to Fiji