News

Earthquakes have been felt since late July in the Manuʻa Islands of American Samoa in the South Pacific. These earthquakes are likely associated with...

Covering over half of the Island of Hawai‘i, Mauna Loa is sometimes referred to as a “sleeping giant” because it hasn’t erupted in 38 years after...

The ongoing eruption at the summit of Kīlauea hasn’t made the news recently, but that doesn’t mean the recent eruptive activity hasn’t been noteworthy...

While our attention is generally drawn to the Island of Hawai‘i’s most active volcanoes, Kīlauea and Mauna Loa, it is also important to keep watch on...

Frank A. Trusdell, a research geologist at the U.S. Geological Survey's Hawaiian Volcano Observatory (HVO), recently received a Meritorious Service...

What makes a volcano a volcano? This was the topic of a “Volcano Watch” article about 20 years ago. Recent questions from visitors suggest this...

The volcanic gas plume at the summit of Kīlauea Volcano in Hawai‘i Volcanoes National Park is often the most visible indication of the ongoing...

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...

Like the pages of a book, the stories of Hawaiian volcanoes are “written” in layers of rock. When Hawaiian Volcano Observatory (HVO) scientists...

The passage of time has a way of isolating notable events of the past; present-day historians can easily lose track of individual events in the “fog”...