Fast forward to 2025, and there have been only three eruptions of Mauna Loa in the past 75 years since 1950: 1975, 1984, and ...

I’ll never forget the first time I saw Kilauea erupting. It was 1975 and Kilauea Iki was bubbling and spurting lava. It was ...

More than half of the world’s critical mineral resources formed in ancient volcanic systems. When exploring for mineral ...

As the oldest and largest island, the Island of Hawaii is dominated by the pair of volcanoes that created the island. At the ...

Hawaiian Volcano Observatory field engineers on July 10, 2025, visited monitoring stations downwind of the Kīlauea summit eruptive vents. They wore snowshoes, as the large footprint keeps the field ...

Shallow tremors can indicate magma movement or changes in geothermal systems, sometimes serving as early warnings of eruptions.

Hawaii is known for its natural beauty, and at Volcanoes National park, you can have a one-of-a-kind camping experience in a ...

Cutting data climate collection – as the Trump administration is now trying to do – is like breaking a thermometer to avoid ...

The Mauna Loa laboratory in Hawaii has measured atmospheric carbon dioxide, which — along with other planet-warming pollution — has led directly to climate change, driving sea level rise ...

Over nearly seven decades, research conducted at Hawaii’s Mauna Loa Observatory taught us that global warming is happening and humans are causing most of it. Trump's proposed budget for 2026 would ...

Please visit HVO’s website for past Volcano Watch articles, Kilauea and Mauna Loa updates, volcano photos, maps, recent earthquake information, and more. Email questions to [email protected].