The federal government's decision not to fund the Thirty Meter Telescope played a role. But questions remain about where the ...

Mauna Loa last erupted in 1984. Its smaller, more active neighbor, Kilauea volcano, has been erupting continuously for more than a year since September 2021.

Mauna Loa makes up about 51 percent of the Big Island and rises 13,679 feet above sea level and about 30,000 feet from the sea floor, according to the National Park Service.

And then, Tiegen was among 50 or so people who bundled up along Mauna Kea’s slopes Friday to see lava flowing down Mauna Loa, “peeking through swiftly moving cloud banks,” he said in a text ...

Mauna Loa’s summit crater sits about 21 miles west of Kilauea, a smaller volcano that has been erupting since 2021. Their simultaneous eruptions have created a rare dual-eruption event ...

For 67 years, the observatory on Hawaii's Mauna Loa volcano has been taking these measurements daily  — tracking the invisible gas that is building up in our atmosphere and changing life on Earth.

The Office of Hawaiian Affairs (OHA) Board of Trustees today approved the immediate withdrawal of its two longstanding lawsuits concerning Maunakea, marking a pivotal shift towards collaborative ...

Mauna Loa awoke from its 38-year slumber Sunday, causing volcanic ash and debris to drift down from the sky. A main highway linking towns on the east and west coasts of the Big Island became an ...

Mauna Loa last erupted on March 25 to April 15, 1984. This followed nearly two years of increased seismic activity. The eruption began quite suddenly, according to the USGS.

Learn about the largest active volcano on Earth Mauna Loa in Hawaii. Discover its massive size, eruption history, and fascinating facts about its role in shaping the Hawaiian Islands.

Jets of searing hot molten lava spewed more than 1,000 feet into the Hawaiian air Friday from the Kilauea volcano.