Over time, as each volcano erupts, the magma dries into ash and begins to form it. So as each one erupts, it just gets bigger and bigger. 

Anyone that lives close to one. America being the country with the most volcanoes. Russia isn't far behind us though. Hawaii is the most effected state.

The magma from below the crust of the Earth bursts through the tectonic plates, it explodes out of the volcano

About 50 eruptions happen a year on the Earth.

Simply just get away from them if they are about to erupt. They also let out a gas when exploding that is hazardous to breathe in.

Warm air from the south, cool air from the north, and dry air from the west. 

95% of all tornadoes happen in central U.S.A. 

Hot and Cold temps mix and create a spiral of winds horizontally. Then, the spiral begins to stand up, creating the tornado. 

April, May, or June

The most central place of the building/house on the first floor with no windows, or in an underground cellar. 

When the top layer of the ground breaks apart and falls down a hill or mountain.

Anyone living or on a mountain or hill, or anyone at the bottom of the higher ground.

Volcanic eruption or heavy rain fall increases the chance of a landslide. Human activity like mining or chopping down trees also effects this. Gravity can also help pull the lose ground closer to the Earth.

When the build up of soil filled ground needs to fall off.

On flat land away from hills or mountains. 

The tropical ocean water heats up and causes thunder storms over the ocean. The wind picks up and begins the circular motion.

If a hurricane reaches land, it effects those living close to the coastline.

The wind twirls over the ocean and gets up to 74mph. The height can reach 9 miles and width 500 miles.

Summer and Fall

Evacuate to high ground if possible. Or go to the inside of the building, away from windows.

Heat source, fuel, and oxygen are all required for a forest fire.

Anyone or anything in its path. 

Most wild fires are started because of people. Campfires, cigarettes are the main causes, or possible someone starting one on purpose.

Heat from the sun and oxygen from our air are important factors in a forest fire. 

Anywhere away from the fire. They can spread quickly, so it is safer to just stay far away. 

Water for the earth is a great thing in many ways. But, when we get more water at one time than the earth can absorb, floods begin. Can happen quickly due to hurricanes, landslides, or just extremely heavy rain.

Floods can happen anywhere at anytime. Has caused more death and destruction than any other natural disaster.

The water levels rise too quickly and a lot of people end up being in an unsafe place when it happens. Or they just can't get to higher ground in time.

Anytime a flood is capable of occurring. 

Higher ground is always the best idea, if you can get there in time. If not, then stay inside, possibly a second floor if able.

When the 2 plate tectonics slide against each other.

They can be small and only vibrate those near by, or they can be huge and make everything on the surface crash down. 

2 pieces of the earth's crust shift and vibrate against each other. This causes the ground to tremble and everything not earthquake safe will be destroyed. 

They can happen at any time.

Under a table, in a doorway, or outside away from any structures.

After a lot of snow builds up on a mountain top, it eventually sticks together and then falls down the mountain. Most cases because of a sudden weight change, like a skier or snowmobile.

Anyone that may be on the mountain or at the bottom of the mountain.

The snow quickly gets a change of foundation and all of the loose snow begins sliding down the mountain at speeds up to 80mph.

Anytime of year for mountains that continuously get snow. Mainly on mountains that are used for skiing.

Anywhere, except in the avalanche's path.