Surviving disasters abroad: main content and contributions
Surviving disasters abroad: main content and contributions
What to do during a volcano eruption, and how dangerous is climbing an active volcano?
In which countries do volcanic eruptions occur?
- Most volcanoes lie on fault lines where tectonic plates meet. These areas with active volcanoes are usually also places with an increased risk of earthquakes
- The other volcanoes are located in so-called 'hotspots'; this type of volcano can for example be found in Iceland, Hawaii, Ethiopia and Reunion.
- The largest numbers of active volcanoes are found in Indonesia, Japan, Papua New Guinea, the east coast of the US, Ecuador and Chile.
- Active volcanoes attract many visitors every year who want to see, feel and smell, sometimes up close, what a volcano actually is. Popular volcanoes to visit include: Kīlauea (Hawaii), Etna (Italy), Merapi (Indonesia), Villarica (Chile), Cotopaxi (Ecuador), Volcán de Fuego (Guatemala) and Aso (Japan)
How can you prepare for a possible volcanic eruption?
- Volcanic eruptions, especially large ones, can now be predicted quite well by volcanologists
- The dangers and frequency of eruptions vary by volcano type, year and location
- The authorities involved usually have extensive evacuation plans in place and also a warning system for residents
- When you visit an area with an active volcano, you can obtain information locally about these plans and systems
What are the dangers of a volcanic eruption?
There are major differences between one volcanic eruption and another. Although lava can look spectacular, it is certainly not the biggest danger during an eruption
- Flying, red-hot rocks and steam: Small eruptions can sometimes eject red-hot material and steam from the crater at high speed. These types of explosions are especially dangerous if you are on the volcano itself.
- Lava flows: The speed of a lava flow can vary between extremely slow and as much as 150 km/h. The hotter the lava, the faster it flows, but there are also various geological aspects that determine whether the lava from a particular volcano will flow quickly or less quickly
- Pyroclastic flow: when an eruption column collapses during an eruption, a devastating pyroclastic flow or 'flare cloud' is created. In fact, the plume of hot ash and rocks rolls down like an avalanche at up to 90 mph. This current is hotter than 100 degrees and destroys everything in its path.
- Lahar: A lahar is a mudflow of volcanic material, especially volcanic ash. Lahars are formed when ash and pumice stone, from the volcanic eruption, mixes with rainwater or meltwater. A lahar does not necessarily form on a volcano, if enough ash lands on, for example, a distant mountain, a lahar can also form there due to the weight of the ash.
- Ash rain: All the ash, grit and stones that are shot into the air in a large plume during an eruption, come down again at a certain point, this phenomenon is called an ash rain. The greater the amount of ash, the more nuisance it causes, such as impassable roads and roof collapses.
- Tsunamis: Some of the volcanoes on the coast or in the sea can cause a tsunami during an eruption.
What can you do if you are caught in a volcanic eruption?
- Because (large) volcanic eruptions are fairly predictable, it is especially important to follow instructions from local authorities when an eruption is imminent or has occurred.
- When you are on a volcano during an eruption, there is really little you can do. Try to get away from the volcano as some volcanoes can erupt several times in a row
- Volcano dust will fall in the wider area around the eruption, cover your mouth and nose to protect your lungs.
- Also try to protect your eyes as much as possible against the sharp ash particles.
Are you insured for the consequences of a volcanic eruption?
- Climbing a volcano under the supervision of professional guides will often be covered by your travel insurance.
- Travel insurance generally does not provide cover if negative travel advice is in force. Only specialized travel insurance for long or special stays abroad can provide a solution here.
- In the event of an unforeseen volcanic eruption, you are generally insured
What to do during an earthquake, in which countries do they occur, and how dangerous are earthquakes
In which countries do earthquakes occur frequently?
- An earthquake cannot be predicted (well), but in certain countries and areas you are much more likely to experience an earthquake
- In Indonesia and Mexico you have more than 2000 every year! earthquakes
- In addition to well-known earthquake countries such as Japan and Chile, Guatemala, Papua New Guinea, the Philippines and Peru are also annually in the top ten of earthquakes per country
How can you prepare for an earthquake?
- Check in advance whether your country of residence or residence has an official website with reliable information about natural disasters.
- Know the earthquake hazards in the area
- Consider the structural integrity of the home
- Place furniture and appliances so that they will not fall over if the ground shakes violently
- Have an emergency bag/kit for each member of the family
- Participate in earthquake drills provided by your employer, educational institution or local government
What to do during an earthquake?
- Stay calm, don't panic
- Stay indoors if you are already in a structurally sound building or home
- If possible, quickly open a door to go outside
- Duck under a sturdy desk or table and hold on to it, or protect your head with your arms
- Stay away from windows, shelves, cabinets and other heavy objects
- Watch out for falling objects. Be alert and keep your eyes open
- If you're outside, go to an open space
- Stay away from trees, power lines, poles and concrete structures
- Move away from steep slopes that could be affected by landslides
- If you are close to the coast and feel an earthquake, especially a strong one, quickly move to higher ground to watch for possible tsunamis
- If you are in a moving vehicle, stop and get out. Try not to go over bridges, viaducts and viaducts that may be damaged, avoid tunnels
What to do after the earthquake
- After the earthquake: take the quickest and safest way out of the building
- Do not use elevators, enter damaged buildings, or use telephones unless necessary
What to do during a hurricane, typhoon or cyclone, and how dangerous are strong winds?
What should you do in a hurricane, typhoon or cyclone, and how dangerous are strong winds?
- What are the travel destinations with the most hurricanes, typhoons and tropical cyclones, and when is the hurricane season?
- What should you do before a hurricane, typhoon or tropical cyclone?
- What should you do during a hurricane, typhoon or tropical cyclone?
- What should you do after the storm struck?
- What are cyclones, hurricanes, tornadoes, tropical storms and typhoons, and what's the difference?
What are the travel destinations with the most hurricanes, typhoons and tropical cyclones, and when is the hurricane season?
Note: storms don't care much about storm seasons, they can occur earlier or later depending on annual climate variations (and accompanying water temperatures). Climate change makes predicting these extreme storms also more difficult
- Caribbean: Hurricane season: June 1 - November 30, with most storms forming in September and October. Islands of Puerto Rico, Bahamas, Cuba and Dominican republic are more likely to be struck than Aruba, Bonaire and Curacao
- United States (including Hawaii): Hurricane Season: June 1 - November 30
- Mexico: Hurricane Season: May 15 - November (East Pacific) or June 1 - November 30 (Atlantic/Caribbean)
- Japan, Vietnam, Taiwan, China: Typhoon season: Year Round
- Philippines: Typhoon season: Year Round, peaking in May to November
- Australia: Cyclone season: November to April
- Madagascar: Cyclone season: November 15 - April 30, with peak activity in February
Check beforehand whether your country of residence has an official site with reliable information in regards to natural disasters.
- are hurricanes, typhoons or cyclones common in your country of living?
- in which months is the highest activity of typhoons?
- what are the most common areas impacted?
What should you do before a hurricane, typhoon or tropical cyclone?
- When booking a visit to a hurricane destination during storm season be aware of the risks, accommodation might be cheap, but it comes with a prize
- Inspect your house for possible repairs (esp. roof).
- Clean drainage to avoid clogging.
- Store supplies; food, water, flashlight, batteries, and medical supplies. Canned goods are ideal for food.
- When living in a hazard prone or risk area, you should evacuate as early as possible.
- Keep up-to-date with the weather forecast (radio/tv/internet).
- When living in a flood prone area, move electric appliances to safe, high-up areas.
What should you do during a hurricane, typhoon or tropical cyclone?
- Stay inside and stay calm. Avoid travel.
- Keep up-to-date with the weather forecast (radio/TV/internet).
- Don't operate electric appliances during flood.
- Avoid wading through flooded areas to avoid water-transmitted diseases.
- Close the windows and turn off the main power switch.
- Avoid the way leading to or along the river.
What should you do after the storm struck?
- Keep up-to-date with the weather forecast (radio/tv/internet).
- If your house was damaged, make sure that it is already safe and stable when you enter.
- Watch out for live wires or outlet immersed in water.
- Boil water before drinking it to avoid diseases.
- Do not let water accumulate in tires, cans or pots to avoid creating a favorable condition for mosquito breeding that can cause dengue.
What are cyclones, hurricanes, tornadoes, tropical storms and typhoons, and what's the difference?
- Hurricanes, tropical storms and typhoons are forms of a tropical cyclone. They are extreme storms that arise above the sea in tropical areas, and are characterized by rare strong winds, very hard rain and sometimes a lot of damage. They often last several days to sometimes one or two weeks. Tropical cyclones can be up to 1000 km wide, and move depending on local weather conditions
- A tropical storm is the weakest form of a cyclone.
- The words 'hurricane', 'cyclone' and 'typhoon' mean the same thing but are used depending on where the storm originates. Above the Atlantic Ocean and the eastern part of the Pacific Ocean in the Northern Hemisphere we speak of hurricanes. Above the western half of the Pacific Ocean in the Northern Hemisphere we speak of a typhoon. Above the Indian Ocean and in the Bay of Bengal we speak of a Cyclone.
- A tornado is a rapidly rotating column of air at the bottom of a thundercloud. A tornado is no wider than 3 km and lasts less long than a cyclone. This column of air is often visible as a trunk because water vapor condenses into clouds. A tornado also often becomes visible because it causes damage and you therefore see objects, such as sand, leaves and branches, flying through the air.
What to do during a flood, and how dangerous is a tsunami?
What is a flood?
- During a flood, large amounts of water reach places where it normally wouldn't. Flooding can occur with either freshwater or saltwater.
- Freshwater floods can occur when rivers, canals, or lakes overflow their banks, for example, due to heavy rainfall or a rapid increase in the amount of meltwater.
- When a dam breaks a flood wave can occur, it's like a wall of water running down the mountain or river with a devastating power.
- Seawater floods occur primarily during storms and hurricanes, where winds push seawater further and further inland, inundating coastal areas. Backwater impoundment can also cause river deltas to flood.
- Large waves during high tide combined with a severe storm is called a storm surge. The combination of spring tide or even king tide with a storm can create the worst storm surges.
- Climate change and the resulting sea level rise increase the risk of flooding from oceans and seas. Slow land subsidence, often due to mismanagement of groundwater, also increases the number of localized floods.
What is a rogue wave or monster wave?
- A rogue wave is an exceptionally high wave of water. This natural phenomenon occurs when several factors come together by chance and form several small waves into one large wave.
- True rogue waves are seldom and mostly occur at open ocean, but also near the coast a sudden extra large wave can occur, sometimes called tidal wave or sneaker wave.
What is a tsunami?
- A tsunami is a special and relatively rare cause of flooding.
- A tsunami is created when an earthquake, landslide, or volcanic eruption occurs beneath the sea.
- A tsunami wave doesn't behave like a normal wave that overturns or rolls onto the coast. A tsunami that comes ashore is more like a very sudden spring tide and is much more destructive than the waves that wind can cause.
- The tsunami wave that hit Southeast Asia in 2004 was 30 meters high in some places.
What should you do to avoid being hit by a flood or tsunami?
- Check beforehand whether your destination has an official website with reliable information about natural disasters such as floods and tsunamis.
- Check the following questions:
- Are floods or tsunamis common in the country or region?
- During which months are floods most likely?
- What are the areas most frequently and severely affected?
How can you prepare for a flood?
- Know your surroundings: where is the water, where does it come from, and where does it flow towards?
- If there is a risk of flooding, pitch your tent or camper on a higher part of the campsite.
- Stay informed about the (local) weather forecast (radio/TV/internet).
- If you live in a flood-prone area, move electrical appliances to safe, elevated areas in a timely manner.
What should you do during a flood?
- Seek higher ground. Don't look for spectacular images: that impressively churning river can suddenly erode banks and bridges under the pressure of the water.
- When the water approaches your home: turn off the main switch to prevent damage from short circuits and fire.
- Once your basement or parking garage starts flooding, don't try to move your belongings. Especially below street level, such a space can suddenly fill up very quickly.
- Avoid travel, especially on roads leading to or along the river or sea.
What should you do after a tsunami warning?
- Seek higher ground. In areas with tsunami experience, there are often signs with escape routes.
- Before a tsunami hits the coast, you can often see the seawater suddenly receding; this is the final warning and a sign to run. Between the receding water and the tsunami wave, you have anywhere from a few seconds to a few minutes before the wave arrives.
- A tsunami can continue for hours, and the first wave isn't the highest. Don't turn back too quickly and keep escaping until you're high enough for disaster scenarios.
- If you hear a growl or roar from the sea after an earthquake, or see the water receding, don't wait for an official alarm; start your ascent.
What to do during a forest fire, and how dangerous are wildfires abroad?
What to do during a forest fire, and how dangerous are wildfires abroad?
Where and when do wildfires and forest fires occur abroad?
- Wildfires and forest fires occur almost everywhere and in every type of landscape. From African savannas, Asian steppes, the South American Chaco, to Siberian reed beds.
- Wildfires can also occur in populated areas, for example on vegetated slopes or in agricultural areas.
- The greatest risk of wildfires is, of course, during the dry season. Such a dry period isn't always the warmest period and can occur quite unexpectedly in certain landscapes.
- Due to climate change, wildfire seasons can vary greatly in timing and severity from year to year.
How can you help prevent a wildfire or forest fire from starting?
- In areas with an increased risk of wildfires, it's important to be well-informed and to know the main escape routes.
- Do not use fire in a dry landscape unless it's essential for your survival. Respect local guidelines regarding, for example, building campfires or prohibitions on barbecues. If you do start a fire, use water and sand/soil to completely extinguish it before continuing.
- Extinguish cigarettes very carefully (or stop smoking).
- If you see glass lying around in nature, take it with you for the next disposal opportunity, as sunlight on stray glass can cause fires.
What can you do if you encounter a forest fire or wildfire?
- Keep an eye on the wind direction and wind speed. In unfavorable winds, a fire can spread faster than you can run.
- If possible, try to escape perpendicular to the wind. This will allow you to escape the fire hazard zone more quickly and reduce the impact of downwind smoke and heat.
- Try to inhale as little smoke as possible by, for example, wearing a face mask or scarf over your mouth and nose.
Are you insured for the consequences of a forest fire or wildfire?
- Travel insurance generally does not provide coverage if a negative travel advisory is in effect. Only specialized travel insurance policies for long-term or special stays abroad can offer a solution in this case.
- In the event of unforeseen natural or forest fires, you are generally insured
- Read more about specialized travel insurance
What to do during a heat wave, and how dangerous is extreme heat?
What should you do during a heat wave, and how dangerous is extreme heat?
What is the best thing to do when traveling abroad in the heat?
- Drink plenty: A basic rule for traveling through warm regions, including the tropics, is that drinking plenty of fluids can prevent many problems. In warm regions, you lose fluids much faster. Sometimes you don't even realize how much you're sweating.
- Plan your activities well: it's usually warmest between 12:00 and 4:00 PM, and the sun is at its brightest. If you plan to do strenuous activities, keep this in mind. For example, exercise in the morning or evening.
- Avoid the sun as much as possible: Be extremely careful of sunstroke and always bring something to put on your head in case you have to walk in the sun for a while or, for example, go on a boat trip and sit on the deck. Wear a hat or cap and preferably protect your skin with an umbrella or sunshade.
- Seek shade and coolness: find a shady tree, go into an air-conditioned building, make sure your car has air conditioning if you're traveling by car, and find the coolest room in your house or accommodation.
- Relocating: During a heatwave, a city is often warmer than the countryside. If your travel schedule allows, you can also "escape" to the next region, province, or country until the temperature returns to your liking.
What are the dangers of extreme heat and dehydration while traveling and backpacking?
- When your body can no longer maintain its temperature at 37 degrees Celsius through sweating, you'll experience a fever. This can occur simply because of the high temperature, because you're more active than the temperature allows, or because you haven't drunk enough.
- Feeling thirsty is actually a sign of dehydration. Dark yellow urine, headaches, muscle cramps, and fatigue can also be signs of dehydration.
- More serious symptoms include loss of consciousness, cold or clammy limbs, confusion, rapid, irregular breathing or heartbeat, and eventually even coma.
What other hazards can arise during extreme heat or drought?
- Water shortages: If the heat persists long enough, drinking water supplies may be jeopardized. Visitors should also handle water carefully and avoid wasting it. Show understanding for the dry pool and the parched lawn.
- Forest and wildfires: In a dry landscape, fires can spread quickly; be alert and avoid inadvertently starting them yourself.
- Flooding: When rain finally falls after a severe drought, it often comes in heavy downpours. The ground can't absorb the water properly due to the drought, which can lead to flooding, mudslides, and landslides.
What to do when you get lost, and how dangerous is getting lost while traveling abroad?
What to do when you get lost, and how dangerous is getting lost while traveling abroad?
When do you get lost while traveling or abroad?
- You're lost when you no longer know where you are and don't know how to get to your destination or how to return to your starting point.
- You've usually been lost for a while before you realize you're lost.
- When there are people around, getting lost is relatively easy to resolve. However, in more remote areas, you're on your own, and it can lead to a dangerous situation.
- Getting lost in the city can be dangerous in certain neighborhoods, especially in the evening.
- In a natural environment, getting lost is particularly dangerous when water is scarce (desert, savanna, outback Australia) or when it is or could become very cold (high mountains, tundra, desert).
How do you avoid getting lost abroad?
- When you arrive in a new environment, prepare your route well. How many kilometers will you cover? What intermediate destinations will you encounter? What are the landmarks? For example, check for hideouts or emergency shelters in case the weather changes.
- Most people navigate these days using electronic devices with digital maps. Make sure you have fully charged batteries, a backup battery, or a power bank.
- In addition to digital navigation, provide at least basic orientation using a physical map. You wouldn't be the first to drop your GPS or smartphone in the river.
- Try to collect landmarks. These landmarks make it easier to turn back if you forget your route ahead. High landmarks in the direction of your destination can also help you find your way forward.
- Look back regularly; if you can't see the route behind you, the chances of finding your way back are slim.
- Keep an eye on the time. For example, if you expect to walk an hour to a landmark and you've already been walking for 90 minutes, it's time to start worrying. The sooner you realize you're lost, the less lost you'll be.
- If you've packed enough water, food, and survival gear (such as a first aid kit, matches, a pocket knife, a headlamp, and a survival blanket), you'll be less likely to panic and can stay lost longer without serious consequences.
- Learn the basic navigation skills you need. Using a compass, in particular, takes some practice.
- Let people know your plan and write your name and route in shelters and mountain huts. If you do get lost, people are more likely to look for you and start searching from the right place.
What should you do if you find yourself lost abroad, and how can you ensure you can be found?
- STOP: Stop, Think, Observe, Plan.
- Don't panic: try to stay calm and consider your next move. Stay where you are until you've calmly considered your options and your situation.
- Beware of false landmarks: your mind tends to recognize things, even if you've never been somewhere before. This phenomenon can give you the false impression that you're going in the right direction, but also lead you to believe you're going in circles.
- The way back is almost always the best way. If you can see the path back, follow it until you're no longer lost.
- Be aware that, if you lack landmarks, you'll naturally walk in circles, while your intuition tells you to go straight ahead.
- Check the time and the position of the sun. Make sure you have the best possible shelter for the night before dark. This depends heavily on the landscape in which you're lost.
- Hopelessly lost in nature? Follow the water downstream. The larger a river becomes, the greater the chance you'll encounter people. Rescue workers are also more likely to search for you along rivers than in the middle of the forest.
- Leave tracks to let those searching for you know you've passed by somewhere.
- Build a campfire when night falls. It keeps wild animals at bay and makes you visible to search teams.
Tip: In an area with other people, but where you'd rather not ask, follow the general direction of the crowd. This way, you'll often end up at central locations, train or bus stations, and from there you can pick up your route again.
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