VOLCANO WATCH: Why do so many deep earthquakes happen around Pāhala?

The USGS Hawaiian Volcano Observatory (HVO) detects tens of thousands of earthquakes each year.
October 11, 2019

VOLCANO WATCH: Geologic History of Mauna Loa’s SE Flank Revealed in New Map

The recently published "Geologic Map of the Central-Southeast flank of Mauna Loa Volcano" is the culmination of years of fieldwork by the US Geological Survey.
October 03, 2019

VOLCANO WATCH: How deep is the 2018 dike under Highway 130?

Even though Kīlauea Volcano's lower East Rift Zone eruption has been over for about a year, steam continues to appear in new places or reappear in old places.
September 27, 2019

HVO Staff Lend Helping Hand to Alaska Colleagues

Volcano observatories across the United States work together to ensure efficient and thorough monitoring of the nation's active volcanoes.
September 20, 2019

Volcano Scientists Gather for a Volatile Meeting

With more collaborative monitoring, we can collect more and higher quality data, and better understand how volcanoes work, including ours here in Hawai‘i.
September 13, 2019

‘Volcano Watch’ Receives National Award

During a reception in Arlington, Virginia, on June 26, 2019, Volcano Watch was awarded First Place in the NAGC's Electronic Publication category.
September 05, 2019

Hilina Fault System, Large Earthquakes Linked

Scientists recently reanalyzed deformation data on Kīlauea’s south flank and found that only a few isolated portions of the Hilina fault system moved.
August 29, 2019

HVO VIDEO, PHOTOS: Halema‘uma‘u Pond Continues to Rise

Routine laser rangefinder measurements indicate that the pond continues to rise.
August 28, 2019

Sub-Antarctic Lava Lake Spied From Space

Volcanoes on Hawai‘i Island played an important role in moon exploration, providing a training ground for astronauts who brought back the first lunar samples.
August 22, 2019

What Does Water in Halema‘uma‘u Mean?

The slowly deepening pond of water on the floor of Halema‘uma‘u, the first in recorded history, has captured the interest of media and the public.
August 16, 2019