1. Mt. Rainier Tectonic Setting

4. Pacific plate
Juan de Fuca plate
N. American plate

5. Pacific plate
Juan de Fuca plate
N. American plate

10. Mt. Rainier History of Cascade Volcanism

14. Mt. Rainier Lava flow deposits

16. Mt. Rainier Seismicity

17. 7 days of seismicity
at Mt. Rainier
(2010 March 25 09:59:22)

19. Graph showing relationship between time and depth of earthquakes…beneath Mount Rainier from 02/24, 2009, through 03/24, 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.

21. Mt. Rainier Mudflow, lahar deposits

24. Note – you don’t need an eruption to generate a lahar – just a source of water and unconsolidated ash deposits.

29. Mt. Rainier Tephra, ash deposits