On July 25, 2019, ponded water was first observed within Halema‘uma‘u at the summit of Kīlauea Volcano.

There are approximately 80 seismograph stations on the Island of Hawai‘i, most of which are located near volcanic vents and rift zones.

"Low-frequency earthquakes aren’t unusual at volcanoes, but there’s no other example of this kind of repetition or longevity anywhere in the world. Ultimately, over 1 million earthquakes were found from 1999 to 2018."

"Signs of the battle between Maui and Kuna are found higher on the Wailuku River."

Dates and times are subject to change based on aircraft availability and weather.

What continues to impress me about this job is how one job can offer so much variety.

Technicians at HVO engineer and maintain the network of stations that monitor the active volcanoes in the state of Hawai‘i.

Tina Neal's Tenure as Scientist-in-Charge of the USGS Hawaiian Volcano Observatory comes to an end this week when she returns to the Alaska Volcano Observatory after fulfilling her five-year commitment to HVO.

Early in April 1952, a series of earthquakes began along Kīlauea’s East Rift Zone and beneath the summit.

The main Mauna Iki lava shield was built by the accumulation of numerous pāhoehoe overflows from a small lava pond at the top of the shield.