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GREEN NORMAL, 2019-12-05 21:11:55 UTC

Mauna Loa
YELLOW ADVISORY, 2019-12-05 19:55:30 UTC

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Hawaiian Volcano Observatory's mission
HVO monitors the active volcanoes in Hawaii, assesses their hazards, issues warnings, and advances scientific understanding to reduce impacts of volcanic eruptions.

HVO News  (archive)
Active Volcanoes in Hawaii1

January is Volcano Awareness Month
December 02, 2019
January 2020 is Hawaii's 11th annual "Volcano Awareness Month," during which HVO will offer free public talks and hikes in cooperation with Hawai‘i Volcanoes National Park, UH-Hilo, and Hawai‘i County Civil Defense.The complete schedule, including details on the date, time, location, and topic of each event, can be viewed here.
Gas data now available on Kīlauea monitoring web pages
November 29, 2019
HVO has recently added "Gas Data" to the "Monitoring Data for Kīlauea" webpages. The public can now view ambient sulfur dioxide concentrations for the past month, as well as Kīlauea summit sulfur dioxide emission rates for the past year. Read more about the recent addition of gas data to the Kīlauea monitoring webpages here.
Magnitude-4.9 earthquake southwest of Laupāhoehoe, Hawaiʻi
November 12, 2019
HVO recorded a magnitude-4.9 earthquake on Monday, November 11, just before 6:36 a.m. HST. This magnitude may be refined as HVO seismologists continue to analyze the earthquake. The earthquake was located 17 km (about 11 mi) southwest of Laupāhoehoe on the Island of Hawai‘i at a depth of 33 km (20 mi). Read the full press release here.
HVO updates Kīlauea Volcano's webcam network
November 08, 2019
HVO has updated its Kīlauea webcam network, adding new cameras and decommissioning old ones that are no longer useful for monitoring purposes. Each camera provides static webcam images, as well as a timelapse loop of the past 24 hours. Read more about the recent webcam updates here.
New USGS video: "Water appears in Halema‘uma‘u – Kīlauea Volcano"
October 10, 2019
USGS Hawaiian Volcano Observatory scientists talk about the water at the bottom of Halema‘uma‘u, which first appeared in late July 2019 and continues to rise today. In this 16-minute USGS YouTube video, they address why the water appeared, how it's monitored, and its potential hazards. The video can be viewed here on the USGS YouTube Channel and can be downloaded here from the USGS Multimedia Gallery.
New USGS geonarrative describes Kīlauea Volcano's 2018 events
September 19, 2019
In 2018, Kīlauea experienced its largest lower East Rift Zone eruption and summit collapse in at least 200 years. This new USGS geonarrative provides a brief overview of recent Kīlauea eruptions, highlighting the circumstances leading up to and summarizing the 2018 events. It can be viewed on any device, but on a smart phone, it is best displayed in landscape mode. See the geonarrative here.
Water pond in Halema‘uma‘u
August 21, 2019
HVO geophysicist Jim Kauahikaua discusses the water pond in Halema‘uma‘u and what it means in this 19-minute "Island Conversations" interview recently aired on Hawai‘i radio stations. He also talks about the status of both Kīlauea and Mauna Loa, neither of which is erupting. Listen to the full interview at B93/B97 or Big Island Video News, which includes a transcription.
Updated overview of Kīlauea Volcano's 2018 lower East Rift Zone eruption and summit collapse
June 10, 2019
A summary chronology and interesting facts about Kīlauea Volcano's 2018 lower East Rift Zone eruption and summit collapse. See overview here...
New USGS data release has GIS shapefiles for the June 27th lava flow
May 22, 2019
This GIS dataset shows the evolution of the "June 27th" lava flow (episode 61e of the Pu‘u ‘Ō‘ō eruption) that was active from June 27, 2014, to June 8, 2016, and threatened the town of Pāhoa, on the Island of Hawai‘i. The dataset also includes the eruptive fissures, the principle ground cracks that were occupied by lava during emplacement of the June 27th flow, and the lava tube system that developed. Follow the link to download GIS shapefiles for the June 27th lava flow at Kīlauea volcano, Hawai‘i, June 2014–June 2016.
Digital database of the geologic map of the middle east rift geothermal subzone, Kīlauea Volcano, Hawaiʻi: USGS Data Series 1111
April 10, 2019
This database release contains the information used to produce Geologic Investigations Series I-2614, a 2006 paper map that depicts part of the Kīlauea middle East Rift Zone, specifically areas east of Puʻu ʻŌʻō, including some of the 1977 flow field.
Very High Threat Potential 1
Mauna Loa
High Threat Potential 1
Moderate Threat Potential 1
Mauna Kea
Not Ranked 1
Lō‘ihi Seamount

1. View the threat rankings of US Volcanoes.