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Volcano Safety Tips

Volcano Preparedness

Volcano Preparedness

Learn about the hazards of an erupting volcano and how to keep your family safe. Learn about the hazards of an erupting volcano and how to keep your family safe.

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Did you know there are more than 150 active volcanoes in the United States and its territories? You might feel better to learn that an ‘active’ volcano is one that has erupted in the past 10,000 years. Nonetheless, millions of Americans live, work or vacation in places that could be affected by volcanic activity.

An erupting volcano can blast ash, lava, solid rocks and gases into the air, creating hazards that can kill people, disrupt air travel and destroy property many miles away. If you live near a known volcano, active or dormant, following these tips will help you keep your loved ones safe.

house at foot of volcano

Before a Volcano Eruption

 

Prepare in Advance

How to Prepare for a Volcano

  • Talk about volcanoes with your family so that everyone knows what to do in case of a volcanic eruption. Discussing ahead of time helps reduce fear, particularly for younger children.
  • Make sure you have access to NOAA radio broadcasts.
  • Keep handy a pair of goggles and a dust mask for each member of your household in case of ashfall.
  • Talk to you insurance agent. Find out what your homeowners’ policy will or will not cover in the event of a volcanic eruption.
  • Make a list of items to bring inside in the event of ashfall.
Volcano lava

During a Volcanic Eruption

Staying Safe During a Volcanic Eruption
 
  • Listen to a local station on a portable, battery-operated radio or television for updated emergency information and instructions. Local officials will give the most appropriate advice for your particular situation.
  • Follow any evacuation orders issued by authorities, and put your emergency plan into action. Although it may seem safe to stay at home and wait out an eruption, if you are in a hazard zone, doing so could be very dangerous.
  • If indoors, close all window, doors, and dampers to keep volcanic ash from entering.
  • Put all machinery inside a garage or barn to protect it from volcanic ash. If buildings are not available, cover machinery with large tarps.
  • Bring animals and livestock into closed shelters to protect them from breathing volcanic ash.
  • Seek shelter indoors if possible.
  • Stay out of designated restricted zones. Effects of a volcanic eruption can be experienced many miles from a volcano.
  • Avoid low-lying areas, areas downwind of the volcano, and river valleys downstream of the volcano. Debris and ash will be carried by wind and gravity. Stay in areas where you will not be further exposed to volcanic eruption hazards. Trying to watch an erupting volcano up close is a deadly idea.
  1. Wear a dust mask designed to protect against lung irritation from small particles. 
  2. Protect your eyes by wearing goggles. Wear eyeglasses, not contact lenses.
  3. Keep as much of your skin covered as possible.
Volcano lava

After a Volcanic Eruption

Staying Safe After a Volcanic Eruption
 

If you do nothing else:

 
  1. Let friends and family know you’re safe. The American Red Cross can help you reconnect with family members.
  2. If evacuated, return only when authorities say it is safe to do so.
  3. Continue listening to local news or a NOAA Weather Radio for updated information and instructions.
  4. If people around you are injured, practice CHECK, CALL, CARE. Check the scene to be sure it’s safe for you to approach, call for help, and if you are trained, provide first aid to those in need until emergency responders can arrive.
  • Stay indoors and away from volcanic ashfall areas if possible. The fine, glassy particles of volcanic ash can increase the health risks for children and people with respiratory conditions, such as asthma, chronic bronchitis, or emphysema.
  • Whether you are indoors or outdoors:

       Wear a dust mask designed to protect against lung irritation from small particles

       Protect your eyes by wearing goggles. Wear eyeglasses, not contact lenses.

       Keep as much of your skin covered as possible.

  • Keep animals away from ashfall and areas of possible hot spots. Wash animals’ paws and fur or skin to prevent their ingesting or inhaling ash while grooming themselves.
  • Help people who require additional assistance—infants, elderly people, those without transportation, large families who may need additional help in an emergency situation, people with disabilities, and the people who care for them.
  • Avoid driving in heavy ashfall. Driving will stir up volcanic ash that can clog engines and stall vehicles. Abrasion can damage moving parts, including bearings, brakes, and transmissions.
  • Wear protective clothing, including long pants, a long-sleeved shirt and sturdy shoes, and be cautious.
  • As soon as it is safe to do so, clear your roof of ashfall. Ash is very heavy and can cause buildings to collapse, especially if made wet by rain. Exercise great caution when working on a roof.
  • Learn more about how to clean up after a volcano, including the supplies you’ll need and how to handle fire hazards such as gas, electricity and chemicals.

Fact vs. Fiction

Fact: Volcanoes generally experience a period of closely spaced eruptions followed by long periods of quiet. Most volcanoes show no regularity, and thus on the basis of past history alone cannot be considered "overdue" or "ready to blow."

Fact: Volcanoes usually give warning signs that they are going to erupt weeks to months or more in advance. Although we cannot predict when a volcano will start to be restless, once activity begins, scientists can make general forecasts about how soon an eruption will occur. A more difficult challenge for volcanologists is forecasting the size of an impending eruption.

Fact: Although this is true in Hawaii, the hazards differ at the more than 150 volcanoes in other parts of the United States.

Principal hazards outside Hawaii include:

1. Volcanic ashfall resulting from explosive-style eruptions. Volcanic ash, the shattered remnants of volcanic rock, rises into the atmosphere, where it is a hazard to aircraft and affects large areas downwind when it falls back to earth. Where it falls in sufficient quantity, it can cause difficulties for vehicles, machinery, and utilities, and can be injurious to human health. 

2. Volcanic mudflows (lahars) resulting from the sudden melting of snow and ice during eruptions. Lahars can inundate river valleys tens of miles distant, destroying bridges, highways, and other types of development, as well as endangering people.

Fact: Earthquakes indicate a geologically active landscape, but they are not the cause of volcanic eruptions. In rare cases, large tectonic earthquakes have triggered eruptions of nearby volcanoes that have been poised to erupt anyway. In the case of Mount St. Helens, a flurry of earthquakes under the volcano suggested potential eruptive activity.

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