'Condition red' declared by officials in parts of Hawaii's Big Island

A 20th fissure has opened, pumping out dangerous sulfur dioxide, yet nearly 400 residents remain.
2:29 | 05/15/18

Coming up in the next {{countdown}} {{countdownlbl}}

Coming up next:

{{nextVideo.title}}

{{nextVideo.description}}

Skip to this video now

Now Playing:

{{currentVideo.title}}

Comments
Related Extras
Related Videos
Video Transcript
Transcript for 'Condition red' declared by officials in parts of Hawaii's Big Island
In the meantime, we're following from Hawaii at this hour, the breaking developments as we're on the air, a massive eruption right now of the kilauea volcano under way. You can see the pictures. Scientists feared it was about to happen. It comes as civil defense officials have declared a code red for the air quality there. We talked about this, with the lava coming up. Let's go live to Matt Gutman tonight, and you can see, those giant ash clouds right there behind you, Matt. Reporter: That's right, David. We've been watching them erupt over the past couple of hours we've been here. Volcanologists say these are the biggest explosive blasts they've seen at kilauea in a century. Reporter: Tonight, the start of the main eruption blackening the sky over kilauea. That stack of ash towering up to 4,000 feet. And tonight, new warnings about those fissures. A 20th fissure cracking open the Earth and pumping out clouds of sulfur dioxide. Officials here declaring a condition red in parts of the big island with the gas posing an immediate danger to health. We drove through that haze with resident Herschel hood. Some of the roads impassable. These plants haven't been burned. It's the fumes that have killed them over the past ten days of continuous expose sure to this gas. At least five new eruptions since Saturday rattling some 400 residents who stayed. Literally taking your house? Oh, yeah. Every five seconds. Boom, boom! Reporter: Barely a half mile away -- those explosions of gas and rock sending those Boulders hundreds of feet in the air. But you can see the shock waves and the heat just radiating off the plain right there. Much of that lava flowing from kilauea. The lava is starting to hit the water table, triggering an explosive eruption, which could blast rock and Boulders for miles around. Let's get back to Matt tonight. The national weather service issuing a warning about that ash? Reporter: That's right, David. They're warning that the ash and gas that is building up across the entire sky right now is hazardous. They are warning people who live nearby to avoid exposure to the outdoors. Now, those volcanologists say, that could last for weeks. Literally smothering parts of this island. And closing down the airports. David? Very active scene there in Hawaii tonight. Matt, thank you.

This transcript has been automatically generated and may not be 100% accurate.

{"id":55189439,"title":"'Condition red' declared by officials in parts of Hawaii's Big Island","duration":"2:29","description":"A 20th fissure has opened, pumping out dangerous sulfur dioxide, yet nearly 400 residents remain. ","url":"/WNT/video/condition-red-declared-officials-parts-hawaiis-big-island-55189439","section":"WNT","mediaType":"default"}