WARNING: Possible Explosions From Kilauea Volcano…??? HVO REPORTS


HVO/USGS Volcanic Activity Notice MAY 9, 2018

Volcano: Kilauea (VNUM #332010)

Current Volcano Alert Level: WARNING

Current Aviation Color Code: ORANGE

Issued: Wednesday, May 9, 2018, 8:02 AM HST
Source: Hawaiian Volcano Observatory
Notice Number:
Location: N 19 deg 25 min W 155 deg 17 min
Elevation: 4091 ft (1247 m)
Area: Hawaii

Volcanic Activity Summary: The steady lowering of the lava lake in “Overlook crater” within Halemaʻumaʻu at the summit of Kīlauea Volcano has raised the potential for explosive eruptions in the coming weeks. If the lava column drops to the level of groundwater beneath Kīlauea Caldera, influx of water into the conduit could cause steam-driven explosions. Debris expelled during such explosions could impact the area surrounding Halemaʻumaʻu and the Kīlauea summit. 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.

Residents of the Kīlauea summit area should learn about the hazards of ashfall, stay informed of the status of the volcano and area closures, and review family and business emergency plans.

Resource on volcanic ash hazards: https://volcanoes.usgs.gov/volcanic_ash/

She has emptied below water level NOW

Remarks: HAZARDS

Primary hazards of concern should this activity occur are ballistic projectiles and ashfall.

BALLISTIC PROJECTILES
During steam-driven explosions, ballistic blocks up to 2 m (yards) across could be thrown in all directions to a distance of 1 km (0.6 miles) or more. These blocks could weigh a few kilograms (pounds) to several tons.

Smaller (pebble-size) rocks could be sent several kilometers (miles) from Halemaʻumaʻu, mostly in a downwind direction.

ASHFALL
Presently, during the drawdown of the lava column, rockfalls from the steep enclosing walls of the Overlook crater vent impact the lake and produce small ash clouds. These clouds are very dilute and result in dustings of ash (particles smaller than 2 mm) downwind.

Should steam-driven explosions begin, ash clouds will rise to greater elevations above ground. Minor ashfall could occur over much wider areas, even up to several tens of miles from Halemaʻumaʻu. In 1924, ash may have reached as high as 20,000 feet above sea level. Small amounts of fine ash from these explosions fell over a wide area as far north as North Hilo (Hakalau), in lower Puna, and as far south as Waiohinu.

GAS
Gas emitted during steam-drive explosions will be mainly steam, but will include some sulfur dioxide (SO2) as well. Currently, SO2 emissions remain elevated.

WARNING TIME

Steam-driven explosions at volcanoes typically provide very little warning. Once the lava level reaches the groundwater elevation, onset of continuous ashy plumes or a sequence of violent steam-driven explosions may be the first sign that activity of concern has commenced.

BACKGROUND

Kīlauea’s lava lake began to drop on May 2, 2018. From its peak on May 2 to the most recent measurement at 9 pm on May 6, the lava lake surface dropped a total of more than 200 m (656 ft). The subsidence was at a relatively constant rate of about 2 meters (yards) per hour.

Measurements of subsidence have not been possible since May 6 because of thick fume and the increasing depth to the lava surface. However, thermal images indicate continued lowering of the lake surface since that time, consistent with deflationary tilt recorded at Kīlauea’s summit. Therefore, we infer that the lake surface continues to drop at roughly the same rate. So, while HVO cannot report exact depths of the receding lava lake, we can monitor the overall trend.

USGS and HVO scientists are monitoring changes at the summit 24/7 and watching for signs that hazardous conditions have increased, or may increase. HVO is working closely with Hawai’i Volcanoes National Park and Hawai’i County Civil Defense to respond to this situation.

FOR MORE INFORMATION

Updates on activity will be posted on the HVO website at https://volcanoes.usgs.gov/volcanoes/kilauea/status.html

You can receive these updates by email through a free subscription service: https://volcanoes.usgs.gov/vns2/

Hawai’i County Civil Defense will issue its own hazard notices should that become necessary: http://www.hawaiicounty.gov/active-alerts/

Hawai’i Volcanoes National Park status is posted on their web page:
https://www.nps.gov/havo/index.htm

Resources on volcanic ash can be found at:
https://volcanoes.usgs.gov/volcanic_ash/

Contacts: askHVO@usgs.gov

Next Notice: Daily updates on all volcanic activity at Kīlauea are issued each morning and posted on out website: https://volcanoes.usgs.gov/volcanoes/kilauea/status.html

You can sign up to receive these messages automatically by visiting https://volcanoes.usgs.gov/vns2/

The Hawaiian Volcano Observatory is one of five volcano observatories within the U.S. Geological Survey and is responsible for monitoring volcanoes and earthquakes in Hawai`i.

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Dynamic Illustration of Kilauea Seismicity and Eruption of 2018 May 6


Dynamic Illustration of Kilauea Seismicity and Eruption of 2018

Returning home is a scary feeling when you don’t know what to expect.


Lava Insurance too expensive for most islanders…


Specialty insurance, added extras… These days those are typical words homeowners are hearing from the insurance companies. Time to have a “CHECK UP” on your homeowners insurance policy. Make sure you are covered for what you “THINK” you are covered for. Better to find out before something happens.

VOG: OUR HEALTH… WHAT IS THIS HAWAII?


WHAT IS VOG???

WARNING: STAY INSIDE YOUR HOMES IF POSSIBLE.

by Chad Rhodes May 8, 2018 10:34 AM


The big question the last few days has been “Whats the VOG going to do to us humans and our pets?”

Noxious sulfur dioxide gas and other pollutants emitted from Kilauea Volcano on the Island of Hawai`i react with oxygen and atmospheric moisture to produce volcanic smog (vog) and acid rain. Vog poses a health hazard by aggravating preexisting respiratory ailments, and acid rain damages crops and can leach lead into household water supplies. The U.S. Geological Survey’s Hawaiian Volcano Observatory is closely monitoring gas emissions from Kilauea and working with health professionals and local officials to better understand volcanic air pollution and to enhance public awareness of this hazard.

Leilani Estates and Lanipuna Gardens are both consumed by noxious gases and are not safe for humans or pets to live in.

Thick, acrid haze has started to cover all of the East side of the island. A resident from Hawaiian Paradise Park, approximately 15 miles from the eruption in Leilani Estates said “for the last 2 days we have had vog and ash. As you can see my fan is covered in what I am assuming is ash from Leilani Estates or Kilauea”.

We were warned early and told that outdoor activities in parks/ beaches might be canceled in affected areas and that schools might need to keep children indoors. People were also warned to be aware of respiratory problems, as these conditions could deteriorate more rapidly in areas of heavier haze. Keep your pets indoors if possible. This choking haze was not caused by a forest fire or industrial pollution but by light winds blowing gas emissions from Leilani Estates and/or Kilauea Volcano into the area.

SO2 is a poisonous gas that irritates skin and the tissues and mucous membranes of the eyes, nose, and throat. During even moderate physical activity, SO2 penetrates deeply into the airway and can produce respiratory distress in some individuals.

Many residents and visitors on the Island of Hawai`i report physical complaints associated with vog exposure. These complaints include headaches, breathing difficulties, increased susceptibility to respiratory ailments, watery eyes, sore throat, flu-like symptoms, and a general lack of energy. In contrast to SO2 gas concentration near Kilauea, the amount of aerosol particles in Hawaii’s air does not routinely exceed Federal standards, but the unique combination of acidic particles, trace amounts of toxic metals, and SO2 gas in vog may account for the wide variety of physical symptoms reported.

For More Information on Vog please see USGS