News

Hawaiian Volcano Observatory Special Reports published in 1912, 1917, 1938, 1949, and 1950 have been added to the USGS Publications Warehouse and made...

Heraklion is the largest city on the island of Crete in Mediterranean Sea. The island isn’t volcanic, but other Greek islands dotting the sea surface...

June 13, 2022 — Mauna Loa summit sunset

The year 1916 not only marked the birth of Hawaiʻi Volcanoes National Park, but also is remembered for the eruption of the Honomalino flow from the...

Mauna Loa and Kīlauea are the two most active volcanoes on the Island of Hawai‘i, and they have overlapping eruption histories. They are located in...

The original purpose of geologic mapping in Hawaiʻi was to understand the distribution of groundwater and soils to support agriculture. But as...

The ninth in a series of presentations by HVO staff that will be posted on our website throughout the month of January. These features are presented...

Mauna Loa is known for its effusive eruptions that produce spectacular lava flows. However, some of the volcanic products found on Mauna Loa are...

The seventh in a series of programs by HVO staff that will be posted on our website throughout the month of January. These programs are presented as...

The third in a series of recorded talks by HVO staff that will be posted on our website throughout the month of January. These talks are presented as...