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Volcanic activity
Episodes during which gases, ash, and lava (molten rock) escape from vents in the earth's crust, accompanied by minor tremors.
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Volcano monitoring (15 items)
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Results 31 - 40 of 68 listed by similarity [list alphabetically]
Hawaiian Volcano Observatory (HVO) earthquakes: HVO seismic network [More info]
Description of the seismic monitoring of the active Hawaiian volcanoes with information on the network, instrumentation, and recording stations with links to related information.
Hawaiian Volcano Observatory spotlight images archive [More info]
Images of Hawaiian volcanoes and the islands they've built in the past few million years, images of recent eruptions, and Hawaiian landscapes.
Kilauea - perhaps the world's most active volcano [More info]
Current activity, hazards, and history of eruptions of Kilauea Volcano.
PDF Kilauea--an Explosive Volcano in Hawaii [More info]
Explains how explosive eruptions occur here, shows the history of its eruptions, and describes the effects and hazards that accompany them.
PDF Mauna Loa -- history, hazards and risk of living with the world's largest volcano [More info]
Describes volcano-related hazards on the Island of Hawaii, including lava flows, explosive eruptions, volcanic smog, damaging earthquakes, and tsunamis.
Mauna Loa current activity [More info]
Current activity of Mauna Loa Volcano with news, GPS data, electronic tiltmeter data, and current seismicity plus links to long term monitoring.
Mauna Loa, Earth's largest volcano [More info]
Current activity, hazards, and history of eruptions of Mauna Loa.
PDF Mount Rainier - Living Safely With a Volcano in Your Backyard [More info]
One of our Nation's most dangerous volcanoes, Mount Rainier has been the source of countless eruptions and volcanic mudflows, and many people live in the areas that will be affected by it.
Preparing for volcanic emergencies [More info]
Describes activities of USGS scientists to increase public awareness of volcano hazards with links to publication and videos for public information on understanding and preparing for volcanic hazards.
Selected volcano information [More info]
Selected books, maps, videos, and other materials produced by the USGS Volcano Hazards Program. Many products highlighted here are intended for general audiences.
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