Hawaii Volcano National Park

Hawaii Volcano National Park - Current Update

HAWAIIAN VOLCANO OBSERVATORY DAILY UPDATE
U.S. Geological Survey
Thursday, July 2, 2020, 12:02 PM HST (Thursday, July 2, 2020, 22:02 UTC)
KILAUEA VOLCANO (VNUM #332010)
19°25'16" N 155°17'13" W, Summit Elevation 4091 ft (1247 m)
Current Volcano Alert Level: NORMAL
Current Aviation Color Code: GREEN
Activity Summary: Kīlauea Volcano is not erupting. Monitoring data for the month of June show variable but typical rates of seismicity and ground deformation, low rates of sulfur dioxide emissions, and only minor geologic changes since the end of eruptive activity in September 2018.

Observations: Monitoring data have shown no significant changes in volcanic activity in June.

There were approximately 1200 earthquakes during the month of June at Kīlauea, an approximate 45 percent increase in the number of earthquakes detected in May. The majority of the increase was from earthquakes detected under the upper East Rift Zone, connecting the summit to the East Rift Zone, and heightened activity deep beneath the summit (4-7 miles) that lasted for over a hundred hours (2020-06-13 to 2020-06-17 UTC).

Over the past month, summit tiltmeters recorded 7 deflation-inflation events–an increase from 4 recorded last month. In the middle East Rift Zone, the increased deformation rates that began in March 2020, consistent with an episode of rift inflation west of Highway 130, and that lessened and flattened during May, have returned to their pre-March trend. The long-term trend of deformation at Kilauea's summit and middle East Rift Zone continue to show inflation, consistent with magma supply to the volcano's shallow storage system. GPS stations on Kīlauea's south flank continue to show elevated rates of seaward motion. HVO continues to carefully monitor all data streams along the Kīlauea East Rift Zone and south flank for important changes.

Sulfur dioxide emission rates are low at the summit, consistent with no significant shallowing of magma. Some amount of sulfur dioxide is being dissolved into the crater lake at the bottom of Halema'uma'u and work continues to try and quantify this process. As of June 30th, the lake depth was approximately 39 meters or 128 feet. The crater lake was last sampled by UAS in January and additional sampling with UAS is planned. Sulfur dioxide emission rates are below detection limits at Puʻu ʻŌʻō and the lower East Rift Zone

Although not currently erupting, areas of persistently elevated ground temperatures and minor release of gases are still found in the vicinity of the 2018 lower East Rift Zone fissures. These include steam (water), very small amounts of hydrogen sulfide, and carbon dioxide. These conditions are expected to be long-term. Similar conditions following the 1955 eruption continued for years to decades.

Hazards: Hazards remain in the lower East Rift Zone eruption area and at the Kīlauea summit. Residents and visitors near the 2018 fissures, lava flows, and summit collapse area should heed Hawaii County Civil Defense and National Park warnings. Lava flows and features created by the 2018 eruption are primarily on private property and persons are asked to be respectful and not enter or park on private property.

The Hawaiian Volcano Observatory (HVO) continues to closely monitor geologic changes, seismicity, deformation, and gas emissions for any sign of increased activity at Kīlauea. HVO maintains visual surveillance of the volcano with web cameras and field visits. Additional messages and alert level changes will be issued as warranted by changing activity.

Background Since June 25 2019, Kīlauea Volcano has been at NORMAL/GREEN. For definitions of USGS Volcano Alert Levels and Aviation Color Codes, see: https://volcanoes.usgs.gov/vhp/about_alerts.html. Kīlauea remains an active volcano, and it will erupt again. Although we expect clear signs prior to the next eruption, the time frame of warning may be short. Island of Hawaiʻi residents should be familiar with the long-term hazard map for Kīlauea Volcano (https://pubs.usgs.gov/mf/1992/2193/) and should stay informed about Kīlauea activity.
Source: Cascade Range Current Update




Kilauea Volcano Cam


This is a static image of Kilauea, The VolcanoCam image automatically updates approximately every two hours.
Volcano image courtesy of ...
Live webcam images of various Hawaii volcanoes
Hawaiian Volcano Observatory Webcam

Kilauea Latest Entrie

June 30, 2020
No significant changes at Kīlauea's summit water lake

No significant changes were observed during today's visit to monitor Kīlauea's summit water lake. The lake surface exhibited some interesting color variations today, but within the range of those previously observed. The sharp color boundary between tan and brown zones has been common. Today, a wedge-shaped, slightly greenish zone was present in the west portion of the lake (towards bottom of image). Laser rangefinder measurements indicate that the lake level continues to slowly rise. USGS photo by M. Patrick.
Left: In the eastern portion of Kīlauea's summit lake, the dark brown zone had a slightly mottled appearance, but this pattern was transient and gone within about ten minutes. USGS photo by M. Patrick. Right: This photo of Kīlauea's summit water lake was taken from the KWcam webcam site on the western caldera rim. The sharp color boundary between tan and dark brown zones is easily visible. A small greenish zone in the west end of the lake (bottom right of image) was more conspicuous today. These zones of greenish water correspond with areas of higher temperatures in the thermal imagery, and may represent zones of water influx into the lake. USGS photo by M. Patrick.
This panorama shows the view of Halema‘uma‘u from the northwest caldera rim, and shows much of the caldera floor that subsided during 2018. The water lake is visible at the bottom of Halema‘uma‘u. Kīlauea Iki is in the upper left portion of the photo. USGS photo by M. Patrick.

Source: Kilauea Volcano Observatory

Information courtesy of ...
U.S. Geological Survey Hawaiian Volcano Observatory (HVO).
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