What To Do Before During And After A Volcanic Eruption Pdf
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- Before, During, and After an Earthquake
- Tsunamis: Before, During & After
- Volcano Safety Tips
- Types of volcanic eruptions
Before, During, and After an Earthquake
Earthquakes can occur in Indiana at any time. Citizens should plan and practice what to do in the event of an earthquake in order to properly respond before, during, and after the shaking begins. Before an earthquake occurs : Prepare for three to seven days of electricity, water, gas, and telephone outages. Keep an earthquake disaster kit on hand, including a well-stocked first aid kit a supply of medicines required for life-threatening conditions, copies of important documents, extra money, a flashlight, a hand crank or solar-powered radio, extra batteries, blankets, drinking water and nonperishable food, and tools to shut off utilities. Store the kit in a secure, waterproof location that is easily accessible.
Tsunamis: Before, During & After
A volcano is a rupture in the crust of a planetary-mass object , such as Earth , that allows hot lava , volcanic ash , and gases to escape from a magma chamber below the surface. On Earth, volcanoes are most often found where tectonic plates are diverging or converging , and most are found underwater. For example, a mid-oceanic ridge , such as the Mid-Atlantic Ridge , has volcanoes caused by divergent tectonic plates whereas the Pacific Ring of Fire has volcanoes caused by convergent tectonic plates. Volcanoes can also form where there is stretching and thinning of the crust's plates, such as in the East African Rift and the Wells Gray-Clearwater volcanic field and Rio Grande Rift in North America. This results in hotspot volcanism , of which the Hawaiian hotspot is an example. Volcanoes are usually not created where two tectonic plates slide past one another.
Volcano Safety Tips
Recovering after a disaster can be overwhelming. Check out what resources the Red Cross has to offer. Read more. Getting or making a kit is the final step in being ready for any emergency.
Create an Account - Increase your productivity, customize your experience, and engage in information you care about. Skip to Main Content. Sign In. Before, During, and After an Earthquake There are many things you can do to help yourself in the event of an earthquake. Generally, an earthquake is divided into three stages: before, during, and after.
Explosive volcanoes blast hot solid and molten rock fragments and gases into the air. As a result, ashflows can occur on all sides of a volcano and ash can fall hundreds of miles downwind. Dangerous mudflows and floods can occur in valleys leading away from volcanoes. If you live near a known volcano, active or dormant, be prepared to follow instructions from your local emergency officials. Learn about your community warning systems and emergency plans.
Puyehue Volcano in Chile, which last erupted in June causing the evacuation of 4, people, is once again showing signs of activity.
Types of volcanic eruptions
Several types of volcanic eruptions —during which lava , tephra ash , lapilli , volcanic bombs and volcanic blocks , and assorted gases are expelled from a volcanic vent or fissure —have been distinguished by volcanologists. These are often named after famous volcanoes where that type of behavior has been observed. Some volcanoes may exhibit only one characteristic type of eruption during a period of activity, while others may display an entire sequence of types all in one eruptive series. There are three different types of eruptions. The most well-observed are magmatic eruptions , which involve the decompression of gas within magma that propels it forward.
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