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Mauna Loa Eruption News: World’s Largest Volcano Erupts in Hawaii, Causing Earthquakes




<p>Mauna Loa on the Big Island of Hawaii</p>
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Mauna Loa on the Big Island of Hawaii

(AP)

Hawaii’s Mauna Loa, the world’s largest active volcano, erupted for the first time in nearly four decades.

According to the National Weather Service (NWS), the eruption on the state’s Big Island began around 11:30 p.m. Hawaii time on Sunday at Mokuaweoweo, the volcano’s summit caldera.

Images from US Geological Survey (USGS) webcams at the summit captured fountains of lava spewing from a long fissure and spreading across the caldera floor.

The USGS said the lava flows were initially contained in the summit area and do not pose a threat to downstream communities, but there are fears that may change.

The eruption has also already triggered dozens of earthquakes above magnitude 2.5 on the Richter scale, with one at 4.2.

The local branch of the NWS issued an ashfall warning which warned that “winds may carry volcanic gases and possibly fine ash and Pele’s hair downwind”.

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The thermal image shows lava flowing from the caldera fissure

The USGS has released a thermal image that shows lava flowing from a long fissure in the Mauna Loa caldera.

“Around 11:30 p.m. HST tonight, November 27, an eruption began at Moku’āweoweo, the summit caldera of Mauna Loa, inside Hawai’i Volcanoes National Park. At present, the lava flows are contained within the summit area and do not threaten downstream communities. Winds can carry volcanic gases and possibly fine ash and Pele’s hair downwind.

“At-risk residents of the Mauna Loa lava flows should review their preparedness and refer to Hawai’i County Civil Defense information for further guidance.

“Based on past events, the early stages of a Mauna Loa eruption can be very dynamic, and the location and advancement of lava flows can change rapidly.

“If the eruption remains at Moku’āweoweo, the lava flows will most likely be confined within the walls of the caldera. However, if the eruptive vents migrate outside its walls, the lava flows may move rapidly towards the bottom.

“HVO is in close consultation with emergency management partners and will be monitoring the volcano closely to provide further updates on activity. As soon as possible, the HVO will carry out aerial reconnaissance to better describe the eruption and assess the dangers.

Megan SheetsNovember 28, 2022 1:35 p.m.

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Website with information for Hawaii residents appears to be broken

The USGS shared a new update Monday morning offering information for Hawaii residents — but the associated link appeared to be broken.

“Residents with questions about emergency response and resources that may be available to help those at risk should review” the read update followed by a link to a Hawaii County ArcGis site.

However, when clicked by The Independentthe link has been broken.

The apparent technical glitch could heighten tensions at a time when residents are hungry for information about the eruption and the risk it could pose to them.

Megan SheetsNovember 28, 2022 1:15 p.m.

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What is Mauna Loa and when did it last erupt?

Besides Mauna Loa, the Big Island of Hawaii is made up of four major volcanoes: Kilauea, Mauna Kea, Hualalai and Kohala. Mauna Loa is by far the largest of the group and also holds the record among active volcanoes on the planet for being the largest.

Mauna Loa – aptly named “Long Mountain” – extends 13,679 feet into the air above sea level where it covers half the length of the island at 60 miles long and 30 miles wide . The summit caldera, called Mokuaweoweo, is itself five kilometers long.

The sky-scraping formation has been relatively quiet for the past few decades, as scientists celebrated the 30th anniversary of its last eruption on March 25, 2014.

Although the last one occurred in 1984, Mauna Loa eruptions have been happening for generations.

Since 1832, 39 eruptions have been documented while the USGS estimates an average of one has occurred every six years over the past 3,000 years.

Megan SheetsNovember 28, 2022 12:55 p.m.

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USGS shares startling satellite view of eruption

The USGS said the lava flows were initially contained in the summit area and do not pose a threat to downstream communities, but there are fears that may change.

The agency shared an infrared satellite view of the eruption on Twitter early Monday.

“It looks like lava is pouring out of the caldera. We are trying to assess the extent. Eruptive fissures, however, remain confined to the caldera for now,” the tweet read.

Megan SheetsNovember 28, 2022 12:37 p.m.

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Ashfall warning triggered after Mauna Loa eruption began

The eruption, the volcano’s first in nearly four decades, triggered dozens of earthquakes above magnitude 2.5 on the richest scale, with one reaching 4.2.

According to the National Weather Service, the eruption began around 11:30 p.m. Hawaii time on Sunday evening. The service warned that “winds can carry volcanic gases and possibly fine ash and Pele’s hair downwind.”

The Independents Andrew Naughtie reports:

Megan SheetsNovember 28, 2022 12:36


The Independent Gt

Not all news on the site expresses the point of view of the site, but we transmit this news automatically and translate it through programmatic technology on the site and not from a human editor.
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