News

In ongoing media coverage of demonstrations at the base of Mauna Kea, many hundreds of people can be seen standing on a black lava flow that surrounds...

Video shows Moku‘āweoweo, the caldera at the summit of Mauna Loa, during a routine overflight. 

On July 2, HVO raised the Volcano Alert Level for Mauna Loa from "Normal" to "Advisory".

Shortly before midnight on July 5, 1975, Mauna Loa Volcano awakened with a shudder. Quickly responding to a seismic earthquake/tremor alarm at 11:18 p...

This timelapse sequence of webcam images over a 24-hour period shows a typical day at the summit of Mauna Loa. 

Routine visit to Mauna Loa summit.

HVO scientists inspect monitoring instruments on Mauna Loa. 

Geologic map of the central-southeast flank of Mauna Loa volcano, Island of Hawaiʻi, Hawaiʻi: USGS Scientific Investigations Map 2932–B 

HVO Scientist-in-Charge Tina Neal talked about the status of Kīlauea and Mauna Loa volcanoes.

GPS station on Mauna Loa.