GrauGeist
Generalfeldmarschall zur Luftschiff Abteilung
Long Valley is very active throughout it's area. The floor of Owens Valley has been slowly lifting over the decades, earthquake swarms occur almost daily (especially by Geysers and Mammoth Lakes) and back in the 80's and 90's, series of strong earthquakes were centered at the southern edge which also introduced new fumaroles. The USGS lists Long Valley itself, as moderate to high risk.