Volcano Watch

Technicians at the USGS Hawaiian Volcano Observatory (HVO) are constantly engineering, building, deploying, maintaining, troubleshooting, or upgrading...

Over the past several months, periods of increased earthquake activity and ground deformation in the summit region of Kīlauea volcano indicate that...

Whether they originate above or below the Earth’s surface, a wide array of signals appear on the USGS Hawaiian Volcano Observatory’s earthquake...

Kīlauea is one of the most active volcanoes on Earth, with a majority of its eruptions occurring at its summit or one of its two rift zones, the East...

A pūpū platter is an assortment of appetizers commonly served at social gatherings in Hawaii. During one week in December 2023, Island of Hawaiʻi...

Kīlauea has erupted three times in 2023—January–March, June, and September—and has also experienced significant intrusive activity to the southwest of...

Volcanoes are a part of life for Hawaii residents. We live on the flanks, feeling earthquakes beneath our feet, smelling vog, and experiencing the...

Twenty-five years ago, the frequently explosive activity of Kīlauea was unappreciated. Since then, continuing research has emphasized Kīlauea’s past...

Active volcanoes are inherently hazardous places to work. Even when a volcano is quiet, volcanic gases, ground cracks, earthquakes, and uneven...

During volcanic crises, the USGS Hawaiian Volcano Observatory (HVO) plays a pivotal role, sharing information on activity and associated hazards with...