Filter Total Items: 286
Date published: July 20, 2017

Volcano Watch — Kīlauea Volcano's Kamokuna ocean entry reaches its one-year anniversary

July 26th marks the one-year anniversary of Kīlauea Volcano's episode 61g lava flow reaching the sea. And at this time, there's no indication that the Kamokuna ocean entry will soon end.

Date published: July 13, 2017

Volcano Watch — New map reveals geologic history of Mauna Loa Volcano’s northeast flank

The new "Geologic map of the northeast flank of Mauna Loa volcano, Island of Hawai‘i," the culmination of many years of work by Hawaiian Volcano Observatory (HVO) geologists, was recently published by the U.S. Geological Survey.

Date published: July 6, 2017

Volcano Watch — Volcano Watch archive is a treasure trove of volcano information

With over 1,000 articles on almost every volcano topic imaginable, the Volcano Watch archive is a treasure trove of information on Hawaiian volcanoes. 

Date published: June 29, 2017

Volcano Watch — Kīlauea eruptive events rival the excitement of July Fourth fireworks

This week's Volcano Watch is a photo essay featuring notable images from Kīlauea Volcano's two ongoing eruptions: East Rift Zone (Pu‘u ‘Ō‘ō), which began in 1983, and summit (Halema‘uma‘u), which began in 2008.

Date published: June 22, 2017

Volcano Watch — HVO logs renewed seismic activity at Lō‘ihi

Since the end of February 2017, HVO seismic analysts have noted a slight uptick in the numbers of earthquakes near Lō‘ihi.

Date published: June 15, 2017

Volcano Watch — HVO's masked geologist heads north to Alaska

Tim Orr accepted a research geology position at the Alaska Volcano Observatory (AVO) in Anchorage, so he's headed north to Alaska. 

Date published: June 8, 2017

Volcano Watch — Latest upgrade of seismic stations at Kīlauea summit completed

Field engineers at the USGS Hawaiian Volcano Observatory (HVO) recently completed a multi-year effort to upgrade a subset of seismic stations at the summit of Kīlauea Volcano.

Date published: June 1, 2017

Volcano Watch — Tracking the latest moves of Kīlauea and Mauna Loa

On the Island of Hawai‘i, deformation is measured primarily with three techniques: tiltmeters, GPS (Global Positioning System), and InSAR (Interferometric Synthetic Aperture Radar).

Date published: May 25, 2017

Volcano Watch — Volcanoes, Landslides, and Angry Gods—A Pacific Northwest Connection

Both volcanoes and landslides are important for landscape evolution in Hawaii and worldwide. In Washington State, an old legend makes the connection between them.

Date published: May 18, 2017

Volcano Watch — HVO's website makeover is more than skin deep

A new structure allows for a more efficient and consistent website, with simplified maintenance that leads to fewer broken links.


Date published: May 11, 2017

Volcano Watch — A geologist remembers the Mount St. Helens eruption 37 years ago

This week's Volcano Watch was written by USGS Hawaiian Volcano Observatory geologist Don Swanson, who worked on Mount St. Helens before and after the 1980 eruption.

Date published: May 9, 2017

Photo and Video Chronology - Mauna Loa - May 9, 2017

USGS scientists hiked to the summit of Mauna Loa, where they checked on HVO's monitoring instruments and realigned an antenna that allows webcam images of the volcano's summit caldera (shown in this panoramic image) to be posted on the HVO website.