While scientists have cleared up much of the mystery surrounding volcanoes, our knowledge has not made volcanoes any less amazing. There are certainly many volcanoes of this type. But the term volcano actually describes a much wider range of geological phenomena.
Generally speaking, a volcano is any place on a planet where some material from the inside of the planet makes its way through to the planet's surface. Published: 1 Jun Mount Agung: flights cancelled after Bali volcano erupts. Volcano spews ash over popular tourist island but authorities yet to raise alert level. Published: 25 May Superheated gases and rock fragments can reach speeds of up to mph by travelling on cushion of air, say scientists. Published: 8 Apr Published: 22 Jan Terrawatch Terrawatch: landslide tsunami lessons from Anak Krakatau.
Published: 1 Jan Volcano three-quarters blown away by Indonesia tsunami eruption. Peak of Anak Krakatau was brought down by more than metres in explosion that triggered waves killing more than people.
Prepare for a volcanic eruption
Published: AM. America's year of extreme weather and eruptions — in pictures. It stresses the importance of protecting oneself against the ash and obtaining safe water by protecting sources, treatment plants, and disinfecting water. Click here to view the video.
Volcanoes: Natural Disasters explained
Other resources. Volcanic Eruptions. Outbreak Influenza Yellow Fever. Emergency Health Measures The periods of inactivity of volcanoes can generate a wrong perception of risk, which can be aggravated by not knowing the characteristics of this threat, increasing vulnerability, especially in communities that settle on its slopes or near the volcano. Hot ash release The consequences of this event are incandescent avalanches or pyroclastic flows hot gas and ash , ash and fall flows, lightning and forest fires. Melted ice, snow and simultaneous rain accompanying eruption This type of eruptive event causes floods and mud flows and volcanic ash.
Lava Magmatic eruptions create lava flows and forest fires. Fresh volcanic ash may be harsh, acid, gritty, glassy, smelly, and thoroughly unpleasant. A heavy ashfall blots out light.
Disaster preparedness: Volcanic eruptions | Habitat for Humanity
Sudden heavy demand for electric light may cause power supplies to burn out or fail. Ash clogs water courses, sewers, sewage plants and machinery of all kinds. Ash drifts onto roadways, cartways and runways like snow, but resembles soft sand Fine ash may be slippery. The weight of ash may cause roofs to collapse. Recommendations from PAHO In consultation with several experts, PAHO offers these recommendations for the general public: In case of moderate or abundant ashfall, especially fine particles, bronchial asthma and other chronic respiratory conditions may be aggravated, in children as well as in adults.
Death is highly improbable, although it could occur in persons with serious symptoms if they do not protect themselves from the ashes.
Ash particles are abrasive and can also cause abrasions in the cornea. What to do the first time volcanic ash begins to fall Follow the recommendations of the emergency authorities Don't panic, stay calm — ash is more bothersome than hazardous to your health but you should minimize exposure to ash.
Stay indoors until the heavy ash is settled. Do not run errands.
If caught outside, stay covered and seek shelter. Use the phone only if it is essential.
- Volcanic eruptions comprise of 3 stages:.
- Guitar Tattoos: Designs & Ideas.
- Photos: All the scariest natural disasters are happening at once?
Use your radio for information on the ashfall. What to do when volcanic ash is falling continuously Follow the recommendations of the emergency authorities You should minimize exposure to ash staying indoors as much as possible.
Geophysical hazards: volcanic eruptions
Seek health care if chest or respiratory symptoms develop. If you need to go outside: The more effective protection is to use a lightweight high efficiency mask or a common surgical mask. Use the same mask until it is visibly soiled or damaged. Protect the eyes, the skin, and cover the head. Remove contact lenses and use glasses when possible.
Related Volcanoes (Disasters)
Copyright 2019 - All Right Reserved