Carbon dioxide levels measured at NOAA’s Mauna Loa Atmospheric Baseline Observatory peaked at 424 parts per million (ppm) in May, continuing a steady climb further into territory not seen for millions ...

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, the world’s largest active volcano, erupted this week for the first time in 38 years. Its neighbor Kilauea, which is also in Hawai’i Volcanoes National Park, has been erupting for ...

Mauna Loa last erupted 38 years ago after a series of large earthquakes. The current eruption is its 34th since written history began in 1843. Hot Topics: What you need to know about the Tonga ...

Mauna Loa, the world's largest volcano, started erupting for the first time in nearly four decades on Nov. 27 and posed a threat to a major highway on Hawaii's Big Island that connects the east ...

Elevated seismic activity has caused Hawai’i Volcanoes National Park to close the Mauna Loa summit backcountry until further notice, the park announced this week. Covering half of the Island of ...

Mauna Loa, which last erupted in 1984, rises 13,679 feet above sea level. It's among the five volcanoes that make up Hawaii's Big Island.

The largest volcano in the world, Hawaii's Mauna Loa, has been erupting for 48 hours.The USGS announced the eruption at 11:30 p.m. HST on November 27 and lava is now flowing towards the northeast ...

While Mauna Loa is the largest volcano on earth, the way it tends to erupt is not as dangerous when compared to other volcanoes. "Keeping people prepared so they don't get blindsided is important.

About two weeks after Earth’s largest active volcano began erupting, Mauna Loa has gone quiet. So, too, has Kilauea, its smaller neighbor on Hawaii’s Big Island, which had been erupting almost ...