As people from around the world are captivated by episodic lava fountaining during the ongoing Kilauea eruption in Halema‘uma ...

Why is the Mauna Loa Observatory so important?In 1958, scientist Charles David Keeling began monitoring carbon dioxide levels at the Mauna Loa Observatory in Hawaii, providing the first clear evidence ...

Scientists lower Mauna Loa alert level, say eruption could end soon Scientists lowered the alert level for the Mauna Loa volcano on Hawaii's Big Island from a warning to a watch on Saturday and ...

A file satellite photo from 2002 shows the snow-covered Mauna Kea (upper) and Mauna Loa (lower) volcanoes on Hawaii's Big ...

Update at 4:43 a.m. April 18: Additional snow accumulation of up to 2 inches is forecast for Big Island summits as the winter ...

In his California laboratory, Ralph Keeling examines a graph created from data his father began collecting that keeps a ...

Up to two inches of snow could accumulate on the state's summits.

Visitors come from around the world to marvel at its explosive displays. The largest of the state's six active volcanoes is Mauna Loa, which is also on the Big Island and erupted in 2022.

There are two active volcanoes in Hawai'i Volcanoes National Park: Mauna Loa and Kilauea. Kilauea is the real "must-see" of the two volcanoes. A 4,000-foot-tall mountain, Kilauea has been active ...

Lava fountains from a fissure in the Northeast Rift Zone of Mauna Loa during the 2022 eruption. It was the first time in 38 ...

Its fellow peak Mauna Loa also sees similar cold conditions. With summits of 13,792 feet for Mauna Kea and 13,674 feet for Mauna Loa, it's not unusual to get snowfall during cold times of the year.