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In early November 2000, the largest earthquake to strike the Big Island in more than a decade occurred, yet no one, not even seismologists, noticed it...

For years, scientists have tried to understand what causes earthquakes. They have recorded, catalogued, and analyzed them.

Hawaiian volcanoes are rich in excitement, beauty, and challenge, but they're not awash in mineral resources. How is it, then, that Kīlauea has a...

Many of us look at a landscape and wonder how it got that way and others wonder how they can make money off it even if they don't use Arthur Anderson...

Pele has been restless lately-she has changed her mood twice since late last year.

When lava flows from an erupting vent or from an active lava tube, scientists face the challenge of determining, or forecasting, which areas are...

Lava is not fire. People sometimes talk about lava as fire, as in "fire fountain," "curtain of fire," and "river of fire." Most realize that these and...

Volcanic activity often results in various forms of ground motion. The scale of this motion, or deformation, to use the scientific term, ranges from...

In 1912, when Thomas Jaggar dug a cellar to house a seismograph on the north rim of Kilauea's caldera, there was only one other volcano observatory on...

Pāhoehoe flow at base of Pūlama pali, Kīlauea Volcano, Hawai‘i.