Volcano Watch

Recent work sheds light on Mauna Loa's magmatic plumbing. The U.S. Geological Survey has embarked on scientific investigations of the plumbing system...

Luckily, Hawai`i experiences volcanic ash much less often than it does lava flows. When it comes, though, it can be anything from a nuisance to a...

"Please do not let this rain dampen your spirits," Senator Daniel Inouye urged the gathering on a misty, breezy Volcano morning.

Big Island residents have long contended with the threat of tsunami. The central Pacific is, unfortunately, ground zero for many of the world's most...

On May 22, 1960, the largest earthquake ever recorded struck the coast of western Chile. The magnitude of this quake was so great that it literally...

On May 22, 1960, the largest earthquake ever recorded struck the coast of western Chile. The magnitude of this quake was so great that it literally...

The past two weeks have been exceptional for viewers of Kilauea's lava flows. Both colorful and convenient, the flows have drawn visitors to the...

"The only constant is change" is an adage that certainly applies to Kīlauea Volcano. Over the past weeks volcano watchers have been treated to views...

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...

On May 19, 1916, at 7:15 a.m., Mauna Loa began to erupt at about the 3,355 m (11,000 ft) elevation on the southwest rift zone. A mushroom-shaped cloud...

One of the basic objectives for seismographic networks is monitoring and maintaining records of earthquakes and other seismic sources. At the Hawaiian...

Pu`ukapukapu sits atop the most imposing cliff along the south coast of Kilauea, towering over the back-country camp site of Halape and dropping 320 m...