Cloud formation over Mount Rainier causes stir on social media

Mount Rainier is not erupting.

The Mount Rainier National Park said in a press release that a vent has not opened on the volcano, addressing a viral social media video that spread on Wednesday.

"After looking at the data we collect, the USGS seismic network does not show any unusual levels of activity coming from Mount Rainier," the release said. "We have coordinated with our colleagues at the National Park Service and their boots on the ground experts are suggesting it is a lenticular cloud, a very interesting cloud formation at Mount Rainier. Lenticular clouds are often formed when moist air is pushed up and over the top of a mountain, forming a disc shaped cloud. The webcam views from Paradise and Camp Schurman show the flow of the cloud over the top from a different view. In this case, it is likely related to related to a passing weather front."