AWAKENING
Officials warn people to be prepared for increased threat
In this aerial photo, the Mauna Loa volcano is seen erupting from vents on the Northeast Rift Zone on the Big Island of Hawaii on Monday. The world’s largest active volcano began spewing ash and debris from its summit, prompting civil defense officials to warn residents on Monday to prepare in case the eruption causes lava to flow toward communities. Story,
Waves of orange, glowing lava and smoky ash erupted Monday from the world’s largest active volcano and people living on Hawaii’s Big Island were warned to be ready should debris threaten communities.
The eruption of Mauna Loa wasn’t immediately threatening towns, but officials told residents to be ready for worse.
Many 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.”
Lifelong Big Island resident Bobby Camara, who lives in Volcano Village, said everyone across the island should be alert and keep track of the eruption.
“I think everybody should be a little bit concerned,” he said. “We don’t know where the flow is going, we don’t know how long it’s going to last.”
He said he’s seen three Mauna Loa eruptions in his lifetime and knows that people need to be nimble.
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.
The biggest cities on the island are 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 on the volcano’s northeast flank. Rift zones are where the mountain rock is cracked and relatively weak — making it easier for magma to emerge.
An eruption from the northeast 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.
It’s possible the eruption may later shift to a rift zone on the southwest flank. Lava emerging from this area could reach nearby communities in hours or days.
“We don’t want to try and second-guess the volcano,” Mr. 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.
The average Mauna Loa eruption is not typically prolonged, lasting a couple of weeks, Mr. Hon said.
“Typically, Mauna Loa eruptions start off with the heaviest volume first,” Mr. Hon said. “After a few days, it starts to calm down a little bit.”
The USGS warned residents at risk from Mauna Loa lava flows to review their eruption preparations.