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The 83 pages that link to Volcanic ash, each with the reason it gives.

• Volcanic hazardRelated: Ashfall can damage lungs, machinery, crops, roofs, and aircraft over broad areas.

• StratovolcanoRelated: Ash falls between lava deposits, helping build the volcano’s alternating layers.

• LaharRelated: Ash supplies fine sediment that mixes with water and helps lahars flow.

• Lava domeRelated: Explosions involving a dome can disperse ash over broad areas.

• PompeiiRelated: Ash buried buildings and created deposits that later helped preserve the city.

• Volcanic craterRelated: Ash erupted from a crater can affect air travel, health, and agriculture far beyond the volcano.

• Mount FujiRelated: The Hoei eruption spread ash widely, including to areas around Edo, now Tokyo.

• Jehol BiotaRelated: Ash layers rapidly buried organisms and provide datable horizons in Jehol strata.

• Volcanic alert levelRelated: Ashfall forecasts and eruption hazards can shape public advisories alongside the alert level.

• RhyoliteRelated: Rhyolitic eruptions can spread ash that records eruption scale and dispersal.

• Sunda ArcRelated: Explosive eruptions along the arc distribute ash across nearby communities and air routes.

• Mount VesuviusRelated: Falling ash buried Pompeii and accumulated across the surrounding region.

• Phreatic eruptionRelated: A phreatic explosion can grind older rock into ash and eject it.

• Volcanic ventRelated: Explosive vents can send ash into the atmosphere, disrupting communities and aviation.

• VolcanoRelated: Explosive eruptions can fragment magma into ash.

• Laetoli footprintsRelated: Moist ash captured the impressions and later cemented into a preservable surface.

• TuffRelated: Compacted volcanic ash supplies the defining material in most tuff.

• Mount EtnaRelated: Ash from Etna can disrupt roads, agriculture, and aircraft operations.

• LaetoliRelated: A wet ash layer at Laetoli took impressions of passing animals.

• Mount PinatuboRelated: Ash blanketed communities and became especially heavy when soaked by rain.

• Volcano tourismRelated: Ash can disrupt travel and pose health risks even far from an eruption.

• Yellowstone CalderaRelated: Ash deposits from Yellowstone’s past eruptions help reconstruct their reach and scale.

• Yixian FormationRelated: Ash layers helped bury fossils and provide datable horizons within the succession.

• Central American Volcanic ArcRelated: Ash from arc eruptions can disrupt aviation, agriculture, and settlements far from a volcano.

• HerculaneumRelated: Ash and other volcanic material formed part of the deposits that entombed the town.

• KrakatoaRelated: Ash from Krakatoa rose high into the atmosphere and spread far beyond Indonesia.

• Lesser Antilles Volcanic ArcRelated: Ash from arc eruptions can disrupt aviation, agriculture, and island communities.

• Mount TamboraRelated: Tambora’s ash fell across the region and its finest particles entered the atmosphere.

• ParícutinRelated: Ash from Parícutin fell on settlements and damaged crops during the eruption.

• Volcanic tourismRelated: Ashfall can disrupt transport, damage infrastructure, and close tourism areas.

• 1991 eruption of Mount PinatuboRelated: Ashfall collapsed roofs and disrupted transport across the region.

• Monte San GiorgioRelated: Ash layers within the succession provide datable horizons between fossil-bearing sediments.

• Mount PeléeRelated: Ash fell across Martinique during the 1902 eruption and compounded its destruction.

• Submarine volcanoRelated: Explosive submarine eruptions can send ash into the water or atmosphere.

• Volcanic soilRelated: Ash is a widespread parent material from which volcanic soil develops.

• Andean Volcanic BeltRelated: Ash from Andean eruptions can disrupt aviation, agriculture, and settlements across borders.

• GomaRelated: Ash from Nyiragongo can affect air quality, water supplies, and infrastructure in Goma.

• Taal VolcanoRelated: Taal's ashfall can disrupt health, transport, agriculture, and aviation.

• Taupō Volcanic ZoneRelated: Large explosive eruptions in the zone can spread ash far beyond their source volcanoes.

• Volcanic coneRelated: Ash-producing eruptions can bury cone slopes and communities around them.

• Klyuchevskaya SopkaRelated: Ash columns from the volcano can rise high enough to disrupt aviation over Kamchatka.

• Mount AsoRelated: Ash from Nakadake can disrupt communities and transport around the volcano.

• Saint Vincent and the GrenadinesRelated: Ash from La Soufrière affected health, water supplies, transport, and farming.

• Extrusive rockRelated: Compacted or cemented ash can form extrusive pyroclastic rocks.

• Mount MerapiRelated: Merapi ash disrupts aviation, agriculture, and daily life across the region.

• Mount PaektuRelated: Ash from Paektu’s major eruption provides evidence of its reach and explosive power.

• 1902 eruption of Mount PeléeRelated: Ash carried in the hot current contributed to the destruction and burial of the city.

• SupervolcanoRelated: Fine ash from a supereruption could disrupt aviation, infrastructure, and agriculture far beyond the caldera.

• AvachinskyRelated: Ash from Avachinsky can affect communities and aviation near Kamchatka.

• David A. JohnstonRelated: Ash-laden flows and blast deposits were among the hazards Johnston’s monitoring helped document.