Ash erupts from Hawaii's Kilauea volcano.
From the summit of Mauna Loa volcano, 20 miles (32 km) away, cameras photographed an anvil-shaped plume billowing on the horizon.
Last year, the USGS said 16 active volcanoes made its California watch list. "Kilauea and Mount St. Helens are different in nearly every imaginable way", she said.
Authorities by afternoon said weak winds and rain meant that ash fallout from the latest eruption was largely contained in areas around Kilauea's summit.
"At any time, activity may again become more explosive, increasing the intensity of ash production and producing ballistic projectiles near the vent", it said in a statement.
The crater sits within Hawaii Volcanoes National Park, which has been closed since May 11 because of the risk of a more violent eruption.
"They said they slept through it. Impacts will be limited to an area around Halemaumau".
That's where the explosion would have sent hot gas and 1,000-pound (450 kg) rocks soaring. Hawaiian residents should make it a priority to defend themselves and their children or pets from the ash and dust that are now expected to heavily fall about 30 miles around the eruption.
On Thursday, a 21st fissure also opened in Leilani Estates while other fissures reactivated with lava, the Hawaii Civil Defense said in an alert.
Residents were instructed to shelter in place if they found themselves in the path of the plume. The eruption was short-lived with trace amounts of ashfall.
Meanwhile, stormy weather caused the ash to mix with rain, creating a dark paste that coated rooftops and auto windshields.
Thursday's eruption sent ash about 30,000 feet above sea level.
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"We're beginning to see the cycle of clogging and pressure building and then the blast". Right here's what we all know thus far.
"And it is not likely to turn into some catastrophic event", he added. Rivers of lava have been flowing around the areas surrounding the volcano, destroying a number of houses. No new fissures, or vents in the ground, opened Thursday, he said.
And as for the so-called "big one", geologists say it's a waiting game.
The global airports in Hilo and Kona are open, officials said.
Kīlauea has erupted in this manner before.
Scientists say there could be more explosions.
The lava lake had drained from the summit crater several months earlier - the scenario now being repeated. The prohibition applies to a 5 mile (8 kilometer) radius around the summit crater.
Hoyt, who also happens to be the mayor pro tem of Walsenburg, is one of two Red Cross volunteers now in Hawaii.
The volcanic eruption is harming his livelihood, he said, as he owns a music retreat and cultural center on his land.
Positioned on the southern shore of Hawaii's "Huge Island" Kilauea has been erupting constantly since 1983 after a interval of being dormant.
It also would create a Volcano Watch Office, which would operate around the clock, to monitor all active volcanoes in the USA and US territories. "They didn't hear it", Ms Aton said. His home is still standing today but it's surrounded by toxic gas. Scientists call this a "phreatic eruption".
This article was originally published by The Washington Post.