Just to be clear to all, Mount Rainer is NOT a hazard for an earth darkening eruption as you say. However, it IS very much at risk of a lahar - huge and fast snow/mud/rock slide that could make it into the populated South Puget Sound area and wipe out communities, bridges and highways.
Very much agree. But the tone of the article is concerning some kind of widespread catastrophe, and whereas a lahar can be catastrophic to those in its path, people 5 miles away might be entirely unaffected. Fortunately or unfortunately for those in its immediate path, the major risks between the mountain and Puget Sound are pretty well known and mapped out.