Future events may include the eruption of a volcano or earthquakes. Scientists are watching volcanoes like Mt. Hood. Mt. Hood has had many minor earthquakes. This is a picture of Mt. Hood. Many earthquakes occur on the peak.
Most earthquakes seem to be on the South East region of Mt. Hood.
There is also sulfur rising off the peak of Mt. Hood. Scientists have also detected steam from hot rocks. Mt. Mazama erupted such along time ago that nobody knows exactly when it erupted. All that is left is a crater called Crater Lake. Scientists don't know if Mt. Mazama is going to active and erupt in the future.