MAUNA LOA ERUPTS
The world’s largest active volcano was erupting Monday and wasn’t immediately threatening communities on Hawaii’s Big Island, but officials warned residents to be ready for worse.
Many current residents weren’t living there when Mauna Loa last erupted 38 years ago. The U.S. Geological Survey warned the roughly 200,000 people on the Big Island that an eruption “can be very dynamic, and the location and advance of lava flows can change rapidly.”
The eruption began late Sunday night following a series of fairly large earthquakes, said Ken Hon, the scientist-in-charge at the Hawaiian Volcano Observatory.
There’s been a surge of development on the Big Island in recent decades — its population has more than doubled, from 92,000 in 1980.
Most of the people on the island live in the city of Kailua-Kona to the west of the volcano, which has about 23,000 people, and Hilo to
the east, with about 45,000. Officials were most worried about several subdivisions about 30 miles to the south of the volcano, which are home to about 5,000 people.
A time-lapse video of the eruption from overnight showed lava lighting up one area, moving across it like waves on the ocean.
The U.S. Geological Survey said that the eruption
had migrated to a rift zone — a place where the mountain rock is cracked and relatively weak — making it easier for magma to emerge.
An eruption from the zone could send lava toward the county seat of Hilo or other towns in East Hawaii but it could take the lava weeks or months to reach populated areas.
“We don’t want to try and
second-guess the volcano,” Hon said. “We have to let it actually show us what it’s going to do and then we inform people of what is happening ASAP.”
Hawaii County Civil Defense announced that it had opened shelters because it had reports of people evacuating from along the coast on their own initiative.