Any of the volcanoes around Portland and Seattle could blow at any time. In Alaska, volcanoes are erupting quite regularly. It is really difficult to tell which US volcano is likely to erupt, next.
But . . . Mt. Rainier, in the Seattle area, is expected to erupt in our lifetimes, and the immense volcano in and under Yellowstone Park could erupt at any time. There are a couple of volcanos in northern California that could erupt, as well.
While all volcanoes in the US have the potential to erupt, Mount St. Helens in Washington state is currently one of the most closely monitored due to its history of recent activity. However, the likelihood of any specific volcano erupting in your lifetime is difficult to predict with certainty.
Hawaii.
An active volcano
A volcano is most likely to erupt when the pressure from the magma chamber overcomes the strength of the rock holding it in place. This can occur when there is an increase in magma supply, changes in gas content, or disruptions in the surrounding rock. Monitoring systems can help predict when a volcano is likely to erupt.
the one that just had
Volcanic stages, from least likely to most likely to erupt, are typically ranked as follows: extinct (no chance of eruption), dormant (unlikely but possible), restless (showing signs of activity), and active (currently erupting or likely to erupt). The ranking is based on the volcano's historical behavior, monitoring data, and signs of increasing activity.
A volcano.
Hawaii.
An active volcano
A volcano is most likely to erupt when the pressure from the magma chamber overcomes the strength of the rock holding it in place. This can occur when there is an increase in magma supply, changes in gas content, or disruptions in the surrounding rock. Monitoring systems can help predict when a volcano is likely to erupt.
the one that just had
Volcanic stages, from least likely to most likely to erupt, are typically ranked as follows: extinct (no chance of eruption), dormant (unlikely but possible), restless (showing signs of activity), and active (currently erupting or likely to erupt). The ranking is based on the volcano's historical behavior, monitoring data, and signs of increasing activity.
It can be called an active, dormant or extinct volcano. An active volcano erupts regularly and frequently, however, it might not erupt at some times. A dormant volcano rarely erupts. Therefore, it does not erupt for most of the time. An extinct volcano does not erupt anymore.
Most volcanoes are active for a long time before dieing. So no an average volcano erupts more than once in its lifetime.
The Lake Toba super volcano is a dormant volcano and there is currently no indication that it will erupt again in the near future. However, it is monitored closely by scientists for any signs of potential activity.
basalt
Occasionally it depends on how big the volcano is but most of the time no
mayon volcano