no
There is no scientific evidence to suggest that Yellowstone will erupt in 2018. The volcano is closely monitored by experts, and any potential eruption would likely be preceded by warning signs.
Yes, should the Yellowstone super volcano erupt as it has done so in the past, the evidence is that the whole world would be affected.
The Yellowstone caldera is a supervolcano located in Yellowstone National Park. While it is an active volcanic system, there is no current indication that it is about to erupt. The USGS monitors Yellowstone closely, and any signs of increased volcanic activity would be detected well in advance.
some sources say that when it does erupt it would probably cause a chain reaction of other volcanos around it. Plus it can cause some species to go extinct.
Most scientists believe that Yellowstone is not truly active and that they would be able to detect if the Yellowstone volcano was going to erupt years before it erupted. But there is no way to no for sure if the Yellowstone caldera is truly active (building up for an eruption).
What would happen if Yellowstone were to erupt? If the supervolcano underneath Yellowstone National Park ever had another massive eruption, it could spew ash for thousands of miles across the United States, damaging buildings, smothering crops, and shutting down power plants. It'd be a huge disaster.
You would travel north from Arizona to Idaho.north
because there are many high elevations in Arizona
There is no way of knowing, but it is not very likely. Unlike most volcanoes, the Yellowstone volcano is the result of a hot spot rather than a plate boundary. Even if plate tectonics did alter the behavior, the change would take place over the course of millions of years.
Most likely not. Seismic stratigraphy suggests that the magma chamber has solidified too much for an eruption to occur. That could change if there is a fresh injection of magma from the mantle.
Scientists do not know when. Contrary to popular belief the volcano does not erupt at regular intervals. Scientists have not monitored the volcano for long enough to get a good idea of its general behavior. However, it is highly unlikely that it will erupt in our lifetimes.
Humans may be able to survive, but many billions could die off from starvation due to lack of food because ash would block out the sun. However, Yellowstone lies on a hot spot and erupts every 600000 years. The last eruption was 640000 years ago, meaning either were overdue or Yellowstone moved past the hot spot and is unable to erupt.