Monday September 24, 2018
Home Lead Story Hawaii Could ...

Hawaii Could Face Volcanic Smog, Acid Rain

An influx of groundwater could interact with the lava and create steam explosions, it added

0
//
53
Scientists have been in the field measuring the eruptions 24 hours a day, seven days a week since Kilauea first exploded more than two months ago.
Scientists have been in the field measuring the eruptions 24 hours a day, seven days a week since Kilauea first exploded more than two months ago. Pixabay
Republish
Reprint

Following the eruption of the Kilauea volcano, residents of Hawaii’s Big Island will now have to deal with steam-driven explosions, hazardous volcanic smog and acid rain, the US Geological Survey (USGS) has warned.

The USGS’s Hawaiian Volcano Observatory on Wednesday warned of possible explosive eruptions in the coming weeks because as the lava continues to sink in a lake inside a Kilauea crater, reports CNN.

An influx of groundwater could interact with the lava and create steam explosions, it added.

Those forces would emit “ballistic projectiles” — as small as pebbles or weighing up to several tonnes.

The USGS also said ash clouds would rise to greater elevations, dispensing ash over wider areas.

“At this time, we cannot say with certainty that explosive activity will occur, how large the explosions could be, or how long such explosive activity could continue,” an advisory said.

Representational image.
Representational image. Wikimedia Commons

Governor David Ige has asked President Donald Trump to issue a disaster declaration for Hawaii as a result of the ongoing earthquakes and volcano eruption, according to a press release.

The declaration allows federal funds to begin to flow to state and local efforts in Hawaii.

The estimated cost to protect residents over the next 30 days is expected to exceed $2.9 million, according to the governor’s office.

A brief explosion on Wednesday on a Kilauea crater was the result of falling rocks and not the interaction of lava with the water table, the USGS said.

Also Read: Earthquake Then Volcano, There is No Relief For the Hawaii Residents

The Kilauea eruption last week created new volcanic vents on the ground miles east of the summit, releasing slow-moving lava and toxic gas into island communities.

Officials have warned of dangerous levels of sulphur dioxide gas, CNN reported.

Following the eruption on May 1, 1,700 residents were asked to evacuate. At least 36 structures — including 26 residences — have been destroyed since then.

Residents were being allowed to check on their properties from 7 a.m. to 6 p.m. each day but must be prepared to leave at a moment’s notice, the Hawaii County Civil Defence Agency says. (IANS)

Click here for reuse options!
Copyright 2018 NewsGram

Next Story

Hawaii Eruption Could Last Years, Destroy New Areas: Geologists

A 1,300-foot-wide (400-meter) lava river now flows to the ocean from this "source cone" through an elevated channel about 52 to 72 feet (16 to 22 meters) above ground

0
Hawaii
Darryl Sumiki, 52, of Hilo, watches as lava lights up the sky above Pahoa during ongoing eruptions of the Kilauea Volcano in Hawaii, June 2, 2018. (VOA)

The eruption of Hawaii’s Kilauea volcano could last for months or years and threaten new communities on the Big Island, according to a report by U.S. government geologists.

A main risk is a possible change in the direction of a lava flow that would destroy more residential areas after at least 712 homes were torched and thousands of residents forced to evacuate since Kilauea began erupting on May 3, the report by the Hawaiian Volcano Observatory said.

A higher volume of molten rock is flowing underground from Kilauea’s summit lava reservoir than in previous eruptions, with supply to a single giant crack — fissure 8 — showing no sign of waning, according to the study published last week.

“If the ongoing eruption maintains its current style of activity at a high eruption rate, then it may take months to a year or two to wind down,” said the report designed to help authorities on the Big Island deal with potential risks from the volcano.

volcano
In this July 17, 2018 photo provided by the U.S. Geological Survey, sunrise is seen over the Kilauea volcano lower East Rift Zone in Hawaii. (VOA)

Lava is bursting from same area about 25 miles (40 km) down Kilauea’s eastern side as it did in eruptions of 1840, 1955 and 1960, the report said. The longest of those eruptions was in 1955. It lasted 88 days, separated by pauses in activity.

The current eruption could become the longest in the volcano’s recorded history, it added.

Geologists believe previous eruptions may have stopped as underground lava pressure dropped due to multiple fissures opening up in this Lower East Rift Zone, the report said.

The current eruption has coalesced around a single fissure, allowing lava pressure to remain high.

Hawaii
Lava erupts in Leilani Estates during ongoing eruptions of the Kilauea Volcano in Hawaii, June 5, 2018. (VOA)

A 1,300-foot-wide (400-meter) lava river now flows to the ocean from this “source cone” through an elevated channel about 52 to 72 feet (16 to 22 meters) above ground.

“The main hazard from the source cone and the channel system is a failure of the cone or channel walls, or blockage of the channel where it divides in narrower braids. Either could divert most, if not all, of the lava to a new course depending on where the breach occurs,” the report said.

Also Read: Hawaii Could Face Volcanic Smog, Acid Rain

The report said it only considered risks from a change in lava flow direction to communities to the north of the channel as residents there have not been evacuated, whereas residents to the south have already left their homes. (VOA)