Mt. Rainier Tectonic Setting
Pacific plate Juan de Fuca plate N. American plate
Pacific plate Juan de Fuca plate N. American plate
Mt. Rainier History of Cascade Volcanism
Mt. Rainier Lava flow deposits
Mt. Rainier Seismicity
7 days of seismicity at Mt. Rainier (2010 March 25 09:59:22) http://www.pnsn.org/RAINIER/rainrec_eqs.html
Graph showing relationship between time and depth of earthquakes…beneath Mount Rainier from 02/24, 2009, through 03/24, 2010. In this graph, 0 km depth corresponds to 3 km (about 2 miles) below the summit of Mount Rainier, which is the average station elevation of recording seismographs near Rainier.
Mt. Rainier Mudflow, lahar deposits
Note – you don’t need an eruption to generate a lahar – just a source of water and unconsolidated ash deposits.
Mt. Rainier Tephra, ash deposits