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News about Mauna Loa.

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Volcano Watch — Seabirds struggle for survival on Mauna Loa

Volcano Watch — Seabirds struggle for survival on Mauna Loa

High on the slopes of Mauna Loa, the largest active volcano on Earth, a unique Hawaiian seabird struggles for survival. 

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Volcano Watch — New informational products offer guidance on living with vog in Hawaii

Volcano Watch — New informational products offer guidance on living with vog in Hawaii

For this winter's vog season, new resources are available to help people become familiar with, and minimize their exposure to, vog.

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Volcano Watch — Helicopter pilots and mechanics crucial for monitoring and observing active volcanoes

Volcano Watch — Helicopter pilots and mechanics crucial for monitoring and observing active volcanoes

Helicopter pilots and mechanics crucial for monitoring and observing active volcanoes.

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Volcano Watch — New techniques cement GPS as a critical tool for volcano monitoring

Volcano Watch — New techniques cement GPS as a critical tool for volcano monitoring

GPS is one of the primary tools we use to monitor ground motion and detect what's happening inside and around Hawaiian volcanoes.

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Volcano Watch — Amber waves of … Pele's hair?

Volcano Watch — Amber waves of … Pele's hair?

The lava lake within Halema‘uma‘u Crater at the summit of Kīlauea Volcano is creating a scene remindful of a messy barbershop floor, except that it's...

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Volcano Watch — 2006 Kīholo Bay earthquakes spur monitoring improvements

Volcano Watch — 2006 Kīholo Bay earthquakes spur monitoring improvements

Ten years ago shortly after 7:00 a.m., HST, on Sunday, October 15, 2006, two damaging earthquakes struck off the northwest coast of the Island of...

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Volcano Watch — How big is that earthquake? Why magnitudes sometimes change

Volcano Watch — How big is that earthquake? Why magnitudes sometimes change

Characterizing earthquakes is one of the most important activities we do at the USGS Hawaiian Volcano Observatory (HVO). Seismicity helps us monitor...

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Volcano Watch — Kamakaiʻa Hills: what are they and why are they there?

Volcano Watch — Kamakaiʻa Hills: what are they and why are they there?

Visitors to the Jaggar Museum and Ka‘ū Desert in Hawai‘i Volcanoes National Park, struck by the appearance of three dark, symmetrical volcanic cones...

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Volcano Watch — The rise and fall of Kīlauea's summit lava lake: what's happening and what does it mean?

Volcano Watch — The rise and fall of Kīlauea's summit lava lake: what's happening and what does it mean?

In early September 2016, USGS Hawaiian Volcano Observatory (HVO) monitoring instruments on Kīlauea began recording increased rates of inflation and...

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Volcano Watch — Kīlauea ocean entry hazards: The plume is not your friend

Volcano Watch — Kīlauea ocean entry hazards: The plume is not your friend

People who venture too close to the perilous beauty of an ocean entry face real and present dangers.

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Volcano Watch — Jaggar's prediction comes true—the 1935 eruption of Mauna Loa

Volcano Watch — Jaggar's prediction comes true—the 1935 eruption of Mauna Loa

Despite severely reduced funding and staffing, Jaggar made an important and successful prediction based on Mauna Loa's past pattern of eruptions. 

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USGS HVO Press Release — Magnitude-4.0 earthquake at summit of Mauna Loa

USGS HVO Press Release — Magnitude-4.0 earthquake at summit of Mauna Loa

The U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) recorded a magnitude-4.0 earthquakebeneath the Island of Hawai‘i on Tuesday, September...

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