Filter Total Items: 286
Date published: November 10, 2016

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.

Date published: November 3, 2016

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

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

Date published: October 27, 2016

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.

Date published: October 20, 2016

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 acres and acres wide rather than a few square feet. The ground downwind of the crater is strewn with Pele's hair, and it is almost impossible to avoid stepping on it.

Date published: October 13, 2016

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 Hawai‘i—a magnitude-6.7 earthquake beneath Kīholo Bay and a magnitude-6.0 earthquake offshore of Māhukona.

Date published: October 6, 2016

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 the "pulse" of volcanoes and can be a first indication of an impending eruption.

Date published: September 29, 2016

Volcano Watch — KAMAKAIA 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 on the western slope of Kīlauea Volcano, often ask "what are they?" and "why are they there?"

Date published: September 22, 2016

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 slightly elevated shallow earthquake activity. These changes indicate a higher rate of magma accumulation within the volcano's summit magma reservoir. 

Date published: September 15, 2016

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.

Date published: September 8, 2016

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. 

Date published: September 6, 2016

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 6, 2016, at 4:25 a.m., HST.

Date published: August 31, 2016

Volcano Watch — Charcoal is good for more than the barbeque

To help determine the timing of eruptive activity, geologists use a radiocarbon age-dating technique. Collecting charcoal is the most common method used in Hawaii, not only by geologists, but also by archaeologists, ecologists, and others.