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If a volcano erupts, you'll have a much higher chance of survival if you listen to official instructions and stay away from dangerous ash and lava. As soon as you hear a siren, turn on the radio to find out what the emergency response team advises. They’ll either tell you to stay indoors with the windows and doors shut or, in severe cases, to evacuate the area. If you live near an active volcano, it’s a good idea to stock up on necessities like a first aid kit, a battery-powered radio, medication, non-perishable food, and water. That way, if you’re stuck inside you’ll be set for some time. If you’re far from shelter when an eruption occurs, climb to higher ground so you can avoid lava flows, mudflows, and flooding, which are common after an eruption. You should also cover your mouth with a mask or moist clothing so you don’t breathe in poisonous gases from the eruption. To learn about the dangers of geothermal areas after an eruption, read on.