This January 10th, 2021 Kilauea Volcano Eruptions update presentation video contains two of the latest USGS lava flow and aerial video with several additional improvements such as motion enlargements, sharpness increase, vibration reduction and additional sound effects enhanced videos. According to the USGS HVO Scientists, the lava lake is still rising it is around 194 m (636 ft) deep and has about 27 million cubic meters (36 million cubic yards). A newly installed instrument showed that the lake level rose about a meter (yard) since the start of the switch from deflationary to inflationary tilt yesterday evening. The most recent thermal map (Jan. 7) provided the perched lake dimensions as 760 by 470 m (830 by 540 yds) for a total area of 28 ha (69 acres) but only the western half was active. (https://www.usgs.gov/maps/december-30-2020-k-lauea-summit-eruption-thermal-map). The lake is now perched about a meter (yard) above its narrow edges as measured Sunday morning (Jan. 3); overflows onto the narrow edge slowly elevated a low wall around the lake similar to the wall around an above-ground swimming pool. The media & data obtained from University of Hawaii USGS and Google Earth with some of the details from; USGS at https://www.usgs.gov/volcanoes/kilauea/photo-video-chronology, earthquakes data and http://pgf.soest.hawaii.edu/Kilauea_insar_2020/.
The 11 smaller islands moved a bit but remained in the east end of the lake. The main island measured about 250 m (820 ft) in length, 135 m (440 ft) in width, and about 3 ha (7 acres) in area based on the Dec. 30 thermal map. Measurements Friday afternoon (Jan. 1) showed that the island surface was about 6 m (20 ft) above the lake surface. Yesterday afternoon, (Jan. 4), the island was measured as 1-2 m (1-2 yds) higher above the lake surface.
HVO scientists collect detailed data to assess hazards and understand how the eruption is evolving at Kīlauea’s summit, all of which are shared with the National Park Service and emergency managers. Access to this area is by permission from, and in coordination with, Hawai‘i Volcanoes National Park. HVO scientists monitor the eruption from within an area of Hawai‘i Volcanoes National Park that remains closed to the public for safety reasons. Associated USGS thermal imaging, illustration maps, time lapse and overflight video with more pronounced helicopter and wind sound are also provided.
It is very exciting to see that Hawaii Kilauea Volcano Halemaumau lava lake is back and looks like much bigger than before. Hopefully Visitors of the Volcano National Park will be able to enjoy these amazing views with their own eyes.
January 2021 is Hawaiʻi Island’s 12th annual Volcano Awareness Month.
According to the USGS Hawaii Volcano Observatory HVO website;
The lava lake has been rising approximately several meters (yards) an hour since the eruption began. The current lava lake exhibits a circulating perimeter, but stagnant center.
The event has been accompanied by only moderate amounts of deformation, indicating deflation of a magma reservoir under Halema’uma’u. Rates of tilting have decreased slightly since the beginning of the eruption.
Increased rates of seismicity in the summit region continue. Some of these earthquakes may be felt. A magnitude-4.4 earthquake located beneath Kīlauea Volcano’s south flank occurred on Sunday, December 20, at 10:36 p.m. HST.
Visitors to the Hawai’i Volcanoes National Park should note that under southerly (non-trade) wind conditions, rockfalls and explosions can result in a dusting of powdery to gritty ash composed of volcanic glass and rock fragments.
Here is my Lava Flow Rate calculation;
In reference to Beginning 2020-12-20 21:30 HST and the Summit Eruption Reference Map 2020-12-27 16:00 HST stats with 5.6 Billion Gallons, and with Time Difference of 6 days, 18 hours, 30 minutes or 162.5 hours or 9750 minutes or 585000 seconds; Therefore 5.6 billion gallons of lava / 585000 seconds = 9572.6 gallons of lava per second (36236.2 liters / second) average flow for approximately the first week. Lava specific weight is about 3100 kg/m3 therefore flow rate is ~112 metric tons per second.
This presentation may contain unintentional errors or audio visual enhancements to improve perception. For official data and media please refer to the USGS.gov website. Attribution: Volcano Hazards Program Office, Hawaiian Volcano Observatory, Kīlauea
ANR Music, and special effect sounds from YouTube Audio Library for creators.