volcanic activity
Earth's fiery outbursts
Volcanic activity refers to the processes associated with volcanoes—eruptions, lava flows, ash emissions, and the release of gases from the earth's interior.
The term covers everything from dramatic explosive eruptions to quieter phenomena like steam vents and hot springs.
Geologists monitor volcanic activity to predict eruptions: There's been increased volcanic activity near the summit.
- laharsVolcanic debris flows
- calderaCollapsed volcanic summit basin
- tectonicsStudy of crustal deformation
- magmaMolten rock underground
- eruptionViolent sudden release
volcanology · cinder cone · stratovolcano · lava tube · pyroclastic flow · lava flow · subduction zones · ash clouds · fire and brimstone · fumarole · steam vents · hot springs · rumbling · sedimentation · crater · igneous rock · molten · molten rock
- Triassic-Jurassic extinctionbiodiversity loss, ecosystem collapse
- disastersdisaster, earthquake, earthquakes, catastrophe, floods
- earth scienceatmosphere, earthquake, geology, crust, eruption
- geologybedrock, fault lines, faults, rock, basalt
- Natural Processesphotosynthesis, decomposition, evaporation, erosion, carbon cycle
- volcanicslava, magma, volcanoes, eruptions, lava flows