{"id":3161,"date":"2020-12-22T14:51:54","date_gmt":"2020-12-23T00:51:54","guid":{"rendered":"https:\/\/blog.hawaiifiles.com\/?p=3161"},"modified":"2020-12-22T14:51:54","modified_gmt":"2020-12-23T00:51:54","slug":"eruption-day-2halemaumau-crater-filling-with-lava","status":"publish","type":"post","link":"https:\/\/blog.hawaiifiles.com\/?p=3161","title":{"rendered":" Eruption Day 2:
Halema\u2018uma\u2018u Crater Filling With Lava<\/strong>"},"content":{"rendered":"
\"Kilauea
On the morning of Dec. 21, Hawaiian Volcano Observatory gas scientists use a FTIR spectrometer on the rim of Halema\u2018uma\u2018u crater. The FTIR measures the composition of the gases being emitted during K\u012blauea Volcano’s ongoing summit eruption by measuring how the plume absorbs infrared energy. The plume being generate by the ongoing eruption is sulfur-dioxide (SO2) rich, but also contains wter vapor, carbon dioxide, and halogen gassses such as HCl and HF. USGS photo by T. Elias.<\/figcaption><\/figure>\n

The following press release is from the USGS Hawaii Volcanoes Observatory. All images are in the public domain from the USGS\/HVO.<\/p>\n

PRESS RELEASE<\/strong><\/span><\/p>\n

Hawaii Files Volcano Watch Page<\/strong><\/a> (link)<\/p>\n

 <\/p>\n

HAWAIIAN VOLCANO OBSERVATORY DAILY UPDATE<\/b>
\nU.S. Geological Survey<\/b>
\nTuesday, December 22, 2020, 11:51 AM HST (Tuesday, December 22, 2020, 21:51 UTC)<\/b><\/p>\n

KILAUEA VOLCANO<\/b>\u00a0(VNUM #332010)
\n19\u00b025’16” N 155\u00b017’13” W, Summit Elevation 4091 ft (1247 m)
\nCurrent Volcano Alert Level: WATCH
\nCurrent Aviation Color Code: ORANGE<\/p>\n

Activity Summary:\u00a0<\/b>No significant change. K\u012blauea continues to erupt at its summit from at least two vents on the north and west sides of Halema\u02bbuma\u02bbu. As of this morning, the growing crater lake was 487 m (1,598 ft) below the crater rim, indicating that the lake has filled 134 m (440 ft) of the bottom of the Halema\u02bbuma\u02bbu crater<\/p>\n

Summit Observations:<\/b>\u00a0Summit tiltmeters continued to record slowing deflationary tilt through this morning. Sulfur dioxide emission rates remain high estimated at around 30,000 tonnes\/day. Seismicity is elevated but stable the last day, with few earthquakes and tremor fluctuations related to the vigor of fissure fountaining.<\/p>\n

Halema\u02bbuma\u02bbu lava lake observations:<\/b>\u00a0When measured last night, the Halema\u02bbuma\u02bbu lava lake was 487 m (1,598 ft) below the crater rim and rising at more than 1 m\/hr (3 ft\/hr). Of the three vents that initially erupted from the north and northeast walls of Halema\u02bbuma\u02bbu, only two remain active, with the middle vent pausing eruptive activity between approximately 7:30 and 8:00 a.m. HST. The middle and west vents, which are located on the lowest down-dropped block within Halema\u02bbuma\u02bbu crater, have since been inundated by the growing lava lake. The farthest east vent remains the most vigorous.<\/p>\n

As of early this morning, a preliminary calculation of volume suggests that, since the start of the eruption, approximately 10 million cubic meters of lava have been erupted (equivalent to over 2 billion gallons). This is a surface area of about 33 acres.<\/p>\n

Webcam views of the lava lake can be found here: https:\/\/volcanoes.usgs.gov\/volcanoes\/kilauea\/multimedia_webcams.html.<\/p>\n

Hazard Analysis:<\/b>\u00a0High levels of volcanic gas, rockfalls, explosions, and volcanic glass particles are the primary hazards of concern regarding this new activity at K\u012blauea’s summit. Large amounts of volcanic gas\u2014primarily water vapor (H2O), carbon dioxide (CO2), and sulfur dioxide (SO2)\u2014are continuously released during eruptions of K\u012blauea Volcano. As SO2 is released from the summit during this new eruption, it will react in the atmosphere with oxygen, sunlight, moisture, and other gases and particles, and within hours to days, convert to fine particles. The particles scatter sunlight and cause the visible haze that has been observed downwind of K\u012blauea, known as vog (volcanic smog), during previous summit eruptions. Vog creates the potential for airborne health hazards to residents and visitors, damages agricultural crops and other plants, and affects livestock operations. Rockfalls and minor explosions, such as the ones that occurred during the 2008\u20132018 lava lake eruption at K\u012blauea summit, may occur suddenly and without warning. This underscores the extremely hazardous nature of K\u012blauea caldera rim surrounding Halema\u02bbuma\u02bbu crater, an area that has been closed to the public since late 2007. Pele’s hair and other lightweight volcanic glass fragments from the lava fountains within Halema\u02bbuma\u02bbu will fall downwind of the fissure vents and lava lake, dusting the ground within a few hundred meters (yards) of the vent. High winds may waft lighter particles to greater distances. Residents are urged to minimize exposure to these volcanic particles, which can cause skin and eye irritation similar to volcanic ash.<\/p>\n

Please see this Hawaii Volcanoes National Park Press Release “How to Safely View the New Eruption in Hawai\u02bbi Volcanoes National Park” at https:\/\/www.nps.gov\/havo\/learn\/news\/20201221_nr_new-summit-eruption-kilauea.htm.<\/p>\n

The Hawaiian Volcano Observatory (HVO) continues to closely monitor K\u012blauea’s seismicity, deformation, and gas emissions for any sign of reactivation, and maintains visual surveillance of the summit and the East Rift Zone. HVO will continue to issue daily updates and additional messages as needed.<\/p>\n

\"Kilauea
Aerial imagery collected during a USGS Hawaiian Volcano Observatory overflight at approximately 11:35 a.m. HST. This photo shows the the two active fissures in K\u012blauea Volcano’s ongoing summit eruption in Halema\u2018uma\u2018u crater. These fissures in the wall of Halema\u2018uma\u2018u crater feed a growing lake at its base. In the center of the lake, an island rises approximately 17 m (55 ft) above the surrounding lake surface. The island moves as if floating and is likely material erupted early in this eruption that accumulated at the base of Halema\u2018uma\u2018u crater. USGS photo.<\/figcaption><\/figure>\n

 <\/p>\n

\"Kilauea
Aerial imagery collected during a USGS Hawaiian Volcano Observatory overflight at approximately 11:35 a.m. HST. The plume from the ongoing eruption rises above the K\u012blauea Volcano’s summit, within Hawai\u2018i Volcanoes National Park. Ha\u2018akulamanu (Sulphur Banks) is visible in the foreground.<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"

The following press release is from the USGS Hawaii Volcanoes Observatory. All images are in the public domain from the<\/p>\n","protected":false},"author":1,"featured_media":3148,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[30,9,4,24],"tags":[837,122,657,13,667,659,10,26,504],"class_list":["post-3161","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-commentary","category-hawaii","category-news","category-press-release","tag-837","tag-commentary","tag-eruption","tag-hawaii","tag-kilauea-volcano","tag-lava","tag-news","tag-press-release","tag-volcano"],"_links":{"self":[{"href":"https:\/\/blog.hawaiifiles.com\/index.php?rest_route=\/wp\/v2\/posts\/3161","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.hawaiifiles.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.hawaiifiles.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.hawaiifiles.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.hawaiifiles.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3161"}],"version-history":[{"count":7,"href":"https:\/\/blog.hawaiifiles.com\/index.php?rest_route=\/wp\/v2\/posts\/3161\/revisions"}],"predecessor-version":[{"id":3171,"href":"https:\/\/blog.hawaiifiles.com\/index.php?rest_route=\/wp\/v2\/posts\/3161\/revisions\/3171"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.hawaiifiles.com\/index.php?rest_route=\/wp\/v2\/media\/3148"}],"wp:attachment":[{"href":"https:\/\/blog.hawaiifiles.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3161"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.hawaiifiles.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3161"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.hawaiifiles.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3161"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}