With quite clear conditions on the morning of February 3, 2025, USGS Hawaiian Volcano Observatory crews on a monitoring overflight of Kīlauea summit had excellent views of the snow-capped Mauna Kea (shown here) and Mauna Loa. Both mountain summits received snow during a winter storm that passed over the Island of Hawai‘i last week. USGS photo by K. Lynn.
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Images
February 3, 2025 — Snow on Mauna Kea
With quite clear conditions on the morning of February 3, 2025, USGS Hawaiian Volcano Observatory crews on a monitoring overflight of Kīlauea summit had excellent views of the snow-capped Mauna Kea (shown here) and Mauna Loa. Both mountain summits received snow during a winter storm that passed over the Island of Hawai‘i last week. USGS photo by K. Lynn.
Map of volcanoes and infrastructure on the Island of Hawaiʻi
Map of Island of Hawaiʻi, highlighting the four active or potentially active volcanoes of the Island, the number of people living on each volcano based on 2020 census data, major roads (transportation corridors) and minor roads (proxy for population density), when each volcano last erupted, and each volcano’s national threat assessment designation.
Map of Island of Hawaiʻi, highlighting the four active or potentially active volcanoes of the Island, the number of people living on each volcano based on 2020 census data, major roads (transportation corridors) and minor roads (proxy for population density), when each volcano last erupted, and each volcano’s national threat assessment designation.
Kīlauea caldera wall and Mauna Kea—July 19, 2022
Aerial view of the north wall of Kīlauea caldera. The bright green area near the center of the image is the Volcano Golf Course. Between it and the caldera edge is the Kīlauea Military Camp. Mauna Kea rises beyond the slopes of the Northeast Rift Zone of Mauna Loa in the background. USGS image by J. Chang.
Aerial view of the north wall of Kīlauea caldera. The bright green area near the center of the image is the Volcano Golf Course. Between it and the caldera edge is the Kīlauea Military Camp. Mauna Kea rises beyond the slopes of the Northeast Rift Zone of Mauna Loa in the background. USGS image by J. Chang.
Island of Hawai‘i seismicity
Two weeks of earthquake activity preceding the September 29, 2021, eruption at Kīlauea summit. The regions of interest indicated on the map include: KS (Kīlauea summit); ML (Mauna Loa summit); P (Pāhala).
Two weeks of earthquake activity preceding the September 29, 2021, eruption at Kīlauea summit. The regions of interest indicated on the map include: KS (Kīlauea summit); ML (Mauna Loa summit); P (Pāhala).
How measuring gravity on Mauna Kea helps us monitor Mauna Loa
A gravimeter measuring the force of gravity on Mauna Kea. These measurements are used to calibrate the instruments so they can precisely monitor changes in gravity from magma accumulation at Mauna Loa (background). USGS photograph taken on December 10, 2020.
A gravimeter measuring the force of gravity on Mauna Kea. These measurements are used to calibrate the instruments so they can precisely monitor changes in gravity from magma accumulation at Mauna Loa (background). USGS photograph taken on December 10, 2020.
Example 2-hours of seismic data from station near Mauna Kea
Example 2-hours of seismic data from station near Mauna Kea on April 14, 2020. The large spikes are earthquakes under Mauna Kea repeating every ~11 minutes. Bottom waveform zooms in on 15 seconds of an individual event.
Example 2-hours of seismic data from station near Mauna Kea on April 14, 2020. The large spikes are earthquakes under Mauna Kea repeating every ~11 minutes. Bottom waveform zooms in on 15 seconds of an individual event.
Videos
PubTalk-11/2023: Six Eruptions at Two Volcanoes Over the Past Three Years
Six Eruptions at Two Volcanoes Over the Past Three Years
How the Hawaiian Volcano Observatory monitors some of Earth’s most active volcanoes
by Katie Mulliken, Geologist, Research Corporation of the University of Hawai‘i and USGS Hawaiian Volcano Observatory
Six Eruptions at Two Volcanoes Over the Past Three Years
How the Hawaiian Volcano Observatory monitors some of Earth’s most active volcanoes
by Katie Mulliken, Geologist, Research Corporation of the University of Hawai‘i and USGS Hawaiian Volcano Observatory
Mauna Loa MKcam (New Webcam)
This video shows a typical day on Mauna Loa, captured from a new webcam looking south towards the volcano. The field of view covers the summit region and much of the Northeast Rift Zone.
This video shows a typical day on Mauna Loa, captured from a new webcam looking south towards the volcano. The field of view covers the summit region and much of the Northeast Rift Zone.