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YELLOW ADVISORY, 2019-03-19 22:56:47 UTC

Mauna Loa
GREEN NORMAL, 2019-03-07 03:14:32 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

Magnitude 5.5 earthquake on KILAUEA Volcano's south flank
March 13, 2019
The U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) recorded a magnitude-5.5 earthquake located beneath K?lauea Volcano's south flank on Wednesday, March 13, at 12:55 a.m., HST. The earthquake was centered about 12 km (7.5 miles) southeast of Kīlauea caldera near the Hōlei Pali area of Hawai‘i Volcanoes National Park at a depth of 6.7 km (4.1 mi).
Read the full HVO news release and see further details at the National Earthquake Information Center website.
The 2018 rift eruption and summit collapse of Kīlauea Volcano
February 22, 2019
In 2018, Kīlauea Volcano experienced its largest lower East Rift Zone (LERZ) eruption and caldera collapse in at least 200 years. Observations and insights from the events are described in this paper, written by the scientists who monitored the activity and published in Science on January 25, 2019. Read paper
Monitoring camera (K3cam) peers into Halemaʻumaʻu
February 22, 2019
A temporary monitoring camera on the west rim of Kīlauea caldera now provides views looking east toward the bottom of the recently enlarged Halema‘uma‘u. However, the deepest part of crater is not visible from this vantage point. Because this is a temporary installation, the view angle can slightly change whenever the camera is serviced. HVO hopes to install a permanent webcam at this site in the coming months. View here
USGS Fact Sheet "Volcanic Air Pollution Hazards in Hawaiʻi" wins award
February 22, 2019
This USGS Fact Sheet, written by HVO scientists, won the 2018 Shoemaker Award for Communications Product Excellence for the Small Print category. It addresses the need of Hawaii residents and visitors to understand vog (volcanic air pollution), a volcano hazard that has impacted Hawaii since the mid-1980s. Shoemaker Communications Awards recognize extraordinary examples of communicating complex scientific concepts and discoveries into words and pictures that capture the public's interest. Read Fact Sheet
How to stay informed about Hawaiian volcanoes
February 22, 2019
Following the dramatic events of 2018, Kīlauea is now relatively quiet. But it remains an active volcano that will erupt again, so it is wise to stay informed about its status, along with other active Hawaiian volcanoes. Here's how
Volcanic threat assessment helps prioritize risk reduction efforts at U.S. volcanoes
October 25, 2018
Since 1980, there have been 120 eruptions and 52 episodes of notable volcanic unrest at 44 U.S. volcanoes. When erupting, all volcanoes pose a degree of risk to people and infrastructure. However, the risks are not equivalent from one volcano to another because of differences in eruptive style and geographic location. …In Hawai‘i, Kīlauea and Mauna Loa are ranked as very high threat volcanoes, and Kīlauea is in the number one spot for the nation. READ MORE
Preliminary summary of Kīlauea Volcano's 2018 lower East Rift Zone eruption and summit collapse
September 27, 2018
Overview of Kīlauea Volcano's activity from April 30 through September 22, 2018.
Very High Threat Potential 1
Mauna Loa
High Threat Potential 1
Moderate Threat Potential 1
Mauna Kea
Not Ranked 1

1. View the threat rankings of US Volcanoes.