Volcano observatories issue updates and other types of notifications as activity warrants. Volcano Notifications Deliver... · Comprehensive monitoring... · Volcanic alert-levels

The mission of the USGS Volcano Hazards Program is to enhance public safety and minimize social and economic disruption from volcanic unrest and eruption. Five USGS volcano... · Volcano Updates · Comprehensive monitoring... · Products

Some volcanic eruptions are explosive and others are not. The explosivity of an eruption depends on the composition of the magma.

An explosion at 0018 on 11 October generated an ash-and-gas plume that rose 400 m above the crater rim and merged into weather clouds. Ash-and-gas plumes from ...

Volcanoes are openings, or vents where lava, tephra (small rocks), and steam erupt onto the Earth's surface. Volcanic eruptions can last days, months, ...

A new Kīlauea eruption began in a remote area of Hawaiʻi Volcanoes National Park on Sunday, September 15, 2024. This is the first eruption on Kīlauea... Read ... Here's how you know · Page 5 · Page 9

Analysis: Kīlauea erupted briefly in and near Nāpau Crater from September 15–20, 2024. Lava flows from this eruption covered more than 880,000 square meters ( ... Eruption on Kīlauea middle... · Multimedia · Maps · Science

Noticeable steaming or fumarolic activity and new or enlarged areas of hot ground; Subtle swelling of the ground surface; Small changes in heat flow; Changes in ...

Delivering official updates and info for US volcanoes. http://usgs.gov/vhp email: vhpweb@usgs.gov Science & Technology volcanoes.usgs.gov Joined August 2016

Real-time monitoring can provide scientists with data necessary to forecast possible style and timing of an eruption within a period of volcanic unrest.