Mauna Loa, which means "Long Mountain" in Hawaiian, last erupted in 1984. The current eruption marks its 34th since written record keeping began in 1843. Kilauea, ...

Mauna Loa, which means "long mountain" in Hawaiian, erupted at approximately 11:30 p.m. local time on Sunday. It had been showing signs of unrest since September, ...

Mauna Loa's Hawaiian name means "long mountain," which is fitting as the huge mountain extends roughly 74 miles from its edge along Hawaii Island's southern coast, to the rim of its summit caldera ...

The world's largest active volcano, Mauna Loa on Hawaii's Big Island, has started to erupt for the first time since March to April 1984, ending its longest known quiet period ever.

Mauna Loa last erupted in 1984. Its smaller, more active neighbor, ... It then spread to vents that formed in a rift zone where the mountain is splitting apart and it’s easier for magma to emerge.

Weston Thelen, a volcanologist with the U.S.G.S. who monitored the mountain from 2011 to 2016, said that sheer size, ... Mauna Loa last erupted in 1984, and in the years afterward, ...

After a 38-year period of calm—the longest in its recorded history—Hawaii’s Mauna Loa has reawakened. At approximately 11:30 p.m. local time on Sunday, Mauna Loa, the largest active volcano ...

Mauna Loa and Mount St. Helens erupt in different ways,” said Liz Westby, a geologist based at the U.S. Geological Survey’s Cascades Volcano Observatory in Vancouver, Washington.

Mauna Loa is not exploding like Washington state's Mount St. Helens did in 1980, killing 57 people. That eruption sent ash soaring over 80,000 feet (24,384 meters) and raining down as far as 250 ...

Hawaii's Mauna Loa volcano is continuing to erupt, but scientists say the lava flows have been slowing down as they reach relatively flat areas around the rumbling mountain.

NASA Odyssey orbiter snapped a first-ever image of a Mars volcano peeking above some clouds before dawn. It’s twice as tall ...