MOUNT RAINIER
GEOLOGY & WEATHER
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Known Mount Rainier Geologic Events

Known Geologic Events at Mount Rainier

The purpose of this page is to list all known, dated gelogic events at Mount Rainier, including lahars, debris flows, large rockfalls, large avalanches, rockfalls, and other events. This list is currently being compiled, so if you find errors or a missing event, please let Scott know.

Click on the event title to open more information about the event.

Type of Event: Location: Order By:

154 geologic events are listed below... If you have witnessed a geologic event, please click here to add it to the database!

# Event Date Type of Event Location Event Name
1 2020-08-09 Rockfall Wilson Headwall August 9 2020 Wilson Headwall Rockfall
2 2020-07-16 Other Hydrologic Event Van Trump Creek July 2020 Van Trump Creek Hydrologic Anomaly
3 2020-02-05 Flood Mount Rainier National Park February 5-7, 2020 Atmospheric River Flooding Event
4 2019-12-20 Flood Mount Rainier National Park December 20, 2019 Atmospheric River
5 2019-10-21 Rockfall Chinook Pass October 21 2019 Windy Point Rock Fall
6 2019-09-26 Unknown Mount Rainier National Park September 26 2019 Geologic Event
7 2019-09-26 Debris Flow South Tahoma Glacier September 26 2019 Tahoma Creek Debris Flow
8 2019-09-07 Debris Flow Dry Creek September 7 2019 Dry Creek debris flow
9 2019-08-13 Avalanche Willis Wall August 13 2019 Willis Wall Avalanche
10 2019-08-05 Debris Flow South Tahoma Glacier August 5 2019 Tahoma Creek Debris Flow
11 2019-06-13 Rockfall Paradise Valley 2019 Paradise Valley Road Rockfall
12 2019-06-02 Avalanche Nisqually Cirque June 2 2019 Nisqually Glacier Icefall
13 2018-10-28 Rockfall Stevens Canyon October 28 2018 Stevens Canyon Road Rockfall
14 2018-09-26 Avalanche Nisqually Cirque Nisqually Cirque Avalanche
15 2018-09-05 Rockfall Nisqually Icefall September 5 2018 Nisqually Rock Fall
16 2018-08-13 Rockfall Comet Falls August 13 2018 Van Trump Park Rockfall
17 2018-08-04 Debris Flow Winthrop Creek August 4 2018 West Fork White River Debris Flow
18 2018-08-01 Rockfall Longmire August 1 2018 Longmire Rockfall
19 2018-07-31 Other Hydrologic Event Late July 2018 Tahoma Creek Overbank Flooding
20 2018-07-30 Unknown Disappointment Cleaver July 2018 Disappointment Cleaver fissures
21 2018-06-06 Rockfall Mount Rainier National Park June 6 2018 Glacier Hill Rock Fall
22 2017-11-21 Flood Mount Rainier National Park November 21-23 2017 Flood
23 2017-11-21 Outburst Flood Emmons Glacier November 21 2017 Possible Emmons Glacier Outburst Floods
24 2017-10-22 Flood Mount Rainier National Park October 2017 Flood
25 2017-09-20 Earthquake Mount Rainier National Park September 2017 Earthquake Swarm
26 2017-09-03 Unknown Kautz Glacier September 2017 Possible Kautz Glacier Hydrologic Event
27 2017-08-03 Unknown Kautz Glacier August 2017 Possible Kautz Glacier Hydrologic Event
28 2016-10-31 Unknown Kautz Glacier October 2016 Possible Kautz Glacier Hydrologic Event
29 2016-10-25 Other Hydrologic Event Kautz Glacier October 2016 Possible Kautz Glacier Hydrologic Event
30 2016-10-15 Debris Flow Dry Creek 2016 Dry Creek Debris Flow
31 2016-05-26 Rockfall Nisqually Vista 2016 Nisqually Vista Area Landslide
32 2015-10-30 Flood Mount Rainier National Park October 2015 Flood
33 2015-10-10 Debris Flow Dry Creek 2015 Dry Creek Debris Flow
34 2015-09-12 Debris Flow South Tahoma Glacier September 2015 South Tahoma Glacier Outburst Flood and Debris Flow
35 2015-08-19 Rockfall Success Cleaver August 2015 Success Cleaver Rockfall
36 2015-08-13 Debris Flow South Tahoma Glacier August 2015 South Tahoma Glacier Outburst Flood and Debris Flow
37 2015-01-05 Flood Mount Rainier National Park January 2015 Flood
38 2015-01-05 Rockfall Backbone Ridge 2015 Backbone Ridge Rockfall
39 2014-11-25 Flood Mount Rainier National Park November 2014 Flood
40 2014-05-15 Rockfall Mount Wow 2014 Mount Wow Rockfall
41 2014-04-09 Unknown Emmons Glacier 2014 Emmons Glacier Possible Winter Outburst Flood
42 2014-02-28 Avalanche Nisqually Cleaver February 2014 Avalanche
43 2012-10-27 Outburst Flood Nisqually Glacier October 2012 Nisqually Glacier Outburst Flood
44 2012-02-22 Avalanche Emmons Glacier February 2012 Emmons Glacier Avalanche
45 2012-02-19 Other Hydrologic Event Carbon Glacier February 2012 Carbon River Hydrologic Event
46 2011-07-27 Rockfall Nisqually Icefall 2011 Nisqually Ice Cliff Rockfalls
47 2011-01-15 Flood Mount Rainier National Park January 2011 Flood
48 2010-09-16 Unknown Ohanapecosh Campground Possible Ohanapecosh Glacier Hydrologic Event
49 2010-08-22 Rockfall Curtis Ridge 2010 Curtis Ridge Rockfall
50 2009-12-11 Earthquake Mount Rainier National Park 2009 Earthquake Swarm
51 2009-09-22 Earthquake Mount Rainier National Park September 2009 Earthquake Swarm
52 2009-07-31 Rockfall South Tahoma Glacier 2009 South Tahoma Glacier Rockfall
53 2009-01-07 Flood Mount Rainier National Park January 2009 Flood
54 2008-11-12 Flood Mount Rainier National Park November 2008 Flood
55 2008-11-08 Rockfall Ricksecker Point November 2008 Ricksecker Point Landslide
56 2007-12-04 Avalanche Stevens Creek December 2007 Stevens Creek Avalanche
57 2007-12-03 Flood Mount Rainier National Park December 2007 Flood
58 2006-11-06 Debris Flow Van Trump Glacier 2006 Van Trump Debris Flow
59 2006-11-06 Debris Flow Pyramid Creek 2006 Pyramid Creek Debris Flow
60 2006-11-06 Debris Flow Winthrop Glacier 2006 Winthrop Glacier Debris Flow
61 2006-11-06 Debris Flow Inter Glacier 2006 Inter Glacier Debris Flow
62 2006-11-06 Debris Flow South Tahoma Glacier 2006 Tahoma Creek Debris Flow
63 2006-11-06 Debris Flow Kautz Glacier 2006 Kautz Glacier Debris Flow
64 2006-11-06 Flood Fryingpan Creek 2006 Fryingpan Creek Flood
65 2006-11-06 Flood Carbon Glacier 2006 Carbon Glacier Flood
66 2006-11-06 Flood Cowlitz Glacier 2006 Cowlitz Glacier Debris Flow
67 2006-11-06 Rockfall Shaw Creek 2006 Shaw Creek Rockfall
68 2006-11-06 Flood Mount Rainier National Park November 2006 Flooding
69 2006-10-07 Earthquake Cowlitz Chimneys October 2006 Cowlitz Chimneys Earthquake
70 2005-09-29 Debris Flow Van Trump Glacier 2005 Van Trump Creek Debris Flow
71 2005-09-29 Debris Flow Pyramid Glacier 2005 Pyramid Glacier Debris Flow
72 2005-09-29 Debris Flow South Tahoma Glacier 2005 Tahoma Creek Debris Flow
73 2005-09-29 Debris Flow Kautz Glacier 2005 Kautz Creek Debris Flow
74 2005-09-29 Flood Mount Rainier National Park September 29 2005 Flood
75 2005-09-29 Outburst Flood Carbon Glacier Probable September 2009 Carbon Glacier Debris Flow
76 2004-12-11 Flood Carbon Glacier December 2004 Carbon River Flood
77 2004-11-07 Earthquake Columbia Crest November 7 2004 M3.2 Earthquake
78 2004-05-31 Flood May 2004 Tahoma Creek Hydrologic Event
79 2003-10-20 Debris Flow Van Trump Glacier October 20 2003 Van Trump Creek Debris Flow
80 2003-10-20 Debris Flow Kautz Glacier October 20 2003 Kautz Creek Debris Flow
81 2003-10-20 Debris Flow South Tahoma Glacier October 20 2003 Tahoma Creek Debris Flow
82 2003-10-07 Debris Flow Dry Creek October 2003 Dry Creek Debris Flow
83 2003-09-12 Slope Failure South Tahoma Glacier 2003 South Tahoma Glacier Slope Failure
84 2001-08-14 Debris Flow Kautz Glacier 2001 Kautz Creek Debris Flow
85 2001-02-28 Earthquake Other 2001 Nisqually Earthquake
86 1999-11-25 Flood Mount Rainier National Park November 1999 flooding
87 1998-12-29 Flood Mount Rainier National Park December 1998 Flooding
88 1996-08-09 Debris Flow Winthrop Glacier August 1996 Winthrop Glacier Debris Flow
89 1996-02-08 Flood Mount Rainier National Park February 1996 Flooding
90 1995-11-28 Flood Mount Rainier National Park November 1995 Floods
91 1993-07-31 Other Hydrologic Event South Tahoma Glacier 1993 Tahoma Creek Flood or Debris Flow
92 1992-09-20 Debris Flow South Tahoma Glacier September 20 1992 Tahoma Creek Debris Flow
93 1992-09-08 Debris Flow South Tahoma Glacier September 8 1992 Tahoma Creek Debris Flow
94 1991-11-05 Debris Flow South Tahoma Glacier 1991 Tahoma Creek Debris Flow
95 1990-11-25 Flood Mount Rainier National Park November 1990 Flooding
96 1990-10-03 Debris Flow South Tahoma Glacier October 1990 Tahoma Creek Debris Flow
97 1990-08-04 Debris Flow South Tahoma Glacier August 1990 Tahoma Creek Debris Flow
98 1989-11-09 Debris Flow South Tahoma Glacier November 1989 Tahoma Creek Debris Flow
99 1989-10-11 Flood Mount Rainier National Park October 11 1989 Flood
100 1989-09-23 Debris Flow South Tahoma Glacier September 1989 Tahoma Creek Debris Flow
101 1989-08-16 Rockfall Russell Cliff 1989 Russell Cliff Rockfall
102 1988-10-22 Debris Flow South Tahoma Glacier October 22 1988 Tahoma Creek Debris Flow
103 1988-10-16 Debris Flow South Tahoma Glacier October 16 1988 Tahoma Creek Debris Flow
104 1988-07-26 Debris Flow South Tahoma Glacier July 26 1988 Tahoma Creek Debris Flow
105 1988-07-14 Debris Flow South Tahoma Glacier July 14 1988 Tahoma Creek Debris Flow
106 1987-11-01 Debris Flow South Tahoma Glacier November 1987 Tahoma Creek Debris Flow
107 1987-10-01 Flood Carbon Glacier 1987 Carbon River Flood Damage
108 1987-09-23 Debris Flow South Tahoma Glacier September 1987 Tahoma Creek Debris Flow
109 1987-08-31 Debris Flow South Tahoma Glacier August 31 1987 Tahoma Creek Debris Flow
110 1987-08-28 Debris Flow South Tahoma Glacier August 28 1987 Tahoma Creek Debris Flow
111 1987-08-09 Debris Flow Winthrop Glacier 1987 Winthrop Glacier Debris Flow
112 1987-06-29 Debris Flow South Tahoma Glacier June 1987 Tahoma Creek Debris Flow
113 1987-06-22 Other Hydrologic Event Nisqually Glacier 1987 Nisqually Glacier Hydrologic Event
114 1986-11-01 Flood Mount Rainier National Park November 1986 Flooding
115 1986-10-26 Debris Flow South Tahoma Glacier 1986 Tahoma Creek Debris Flow
116 1986-09-04 Debris Flow Kautz Glacier 1989 Kautz Glacier Debris Flow
117 1986-06-22 Other Hydrologic Event Nisqually Glacier 1986 Nisqually Glacier Hydrologic Event
118 1985-07-18 Debris Flow Kautz Glacier 1985 Kautz Glacier Debris Flow
119 1982-11-01 Flood Mount Rainier National Park 1982 Flooding
120 1981-08-15 Debris Flow South Tahoma Glacier August 1981 Tahoma Creek Debris Flow
121 1980-12-28 Flood Mount Rainier National Park December 20-28 1980 Flooding
122 1980-09-21 Outburst Flood South Tahoma Glacier September 1980 Tahoma Creek Debris Flow
123 1979-08-01 Debris Flow South Tahoma Glacier July-August 1979 Tahoma Creek Debris Flows
124 1977-12-02 Flood Mount Rainier National Park Early December 1977 Flooding
125 1976-07-03 Outburst Flood Nisqually Glacier July 1976 Nisqually Glacier Outburst Flood
126 1975-09-15 Debris Flow Van Trump Creek 1975 Kautz and Van Trump Debris Flow
127 1974-01-15 Flood Mount Rainier National Park January 1974 Floods
128 1972-07-14 Outburst Flood Nisqually Glacier 1972 Nisqually River Flood
129 1971-08-10 Debris Flow South Tahoma Glacier August 1971 Tahoma Creek Debris Flow
130 1970-08-21 Debris Flow South Tahoma Glacier August 1970 Tahoma Creek Debris Flow
131 1970-07-04 Outburst Flood Nisqually Glacier 1970 Nisqually Glacier Hydrologic Event
132 1968-07-01 Outburst Flood South Tahoma Glacier Summer 1968 Tahoma Creek Hydrologic Events
133 1968-06-02 Outburst Flood Nisqually Glacier 1968 Nisqually River Flood
134 1967-09-15 Debris Flow South Tahoma Glacier September 1967 Tahoma Creek Debris Flow
135 1967-08-31 Debris Flow South Tahoma Glacier August 31 1967 Tahoma Creek Debris Flow
136 1967-08-29 Outburst Flood South Tahoma Glacier August 29 1967 Tahoma Creek Outburst Flood
137 1963-12-14 Rockfall Little Tahoma Peak 1963 Little Tahoma Rockfall
138 1962-11-20 Flood Mount Rainier National Park November 1962 Flooding
139 1961-08-23 Debris Flow Kautz Glacier 1961 Kautz Creek Debris Flow
140 1959-11-22 Flood Mount Rainier National Park November 1959 Flood
141 1955-10-25 Debris Flow Nisqually Glacier 1955 Nisqually Glacier Debris Flow
142 1955-10-25 Flood Carbon Glacier October 1955 Carbon River Flooding
143 1952-09-01 Flood Chenuis Falls September 1952 Carbon River Flood
144 1951-02-09 Flood Mount Rainier National Park February 1951 Flooding
145 1947-11-08 Flood Mount Rainier National Park November 1947 Floods
146 1947-10-02 Outburst Flood Nisqually Glacier 1947 Nisqually River Outburst Flood
147 1947-10-02 Debris Flow Kautz Glacier 1947 Kautz Creek Mudflow
148 1945-12-28 Flood Mount Rainier National Park December 1945 Floods
149 1934-10-25 Debris Flow Nisqually Glacier 1934 Nisqually Glacier Debris Flow
150 1934-10-25 Flood Mount Rainier National Park October 1934 Flooding
151 1933-10-09 Flood Mount Rainier National Park October 1933 Flooding
152 1932-10-14 Debris Flow Nisqually Glacier 1932 Nisqually Glacier Debris Flow
153 1926-10-16 Debris Flow Nisqually Glacier 1926 Nisqually Glacier Debris Flow
154 1894-12-24 Unknown Columbia Crest Possible 1894 Phreatic Eruption


Data references:

Beason, S.R., 2012, Small glacial outburst flood occurs on Mount Rainier - October 27, 2012: Unpublished National Park Service Science Brief, 3 p.
Beason, S.R., et al., in prep, Glacial outburst floods and debris flows from the South Tahoma Glacier, Mount Rainier National Park, Washington: August and September, 2015: National Park Service Natural Resource Report NPS/MORA/NRR-2015/XXX.
Copeland, E.A., 2010, Recent periglacial debris flows from Mount Rainier, Washington: M.S. Thesis, Oregon State University, 125 p.
Copeland, E.A., P.M. Kennard, A.W. Nolin, S.T. Lanscaster and G.E. Grant, 2008, Initiation of recent debris flows on Mount Rainier, Washington: A climate warming signal? American Geophysical Union Fall Meeting, San Francisco, CA.
Crandell, D.R., 1971, Postglacial lahars from Mt. Rainier volcano, Washington: U.S. Geological Survey Professional Paper 677, 75 p.
Donovan, K.H.M, 2005, An investigation into the 2003 Van Trump Creek debris flow, Mt. Rainier, Washington, United States of America: BSc Geological Hazards Thesis, University of Portsmouth (UK), 58 p.
Driedger, C.L. and A.G. Fountain, 1989, Glacier outburst floods at Mout Rainier, Washington State, USA: Anals of Glaciology, Vol. 13, 5 p.
Hodge, S., 1972, The movement and basal conditions of the Nisqually Glacier, Mount Rainier: Ph.D Thesis, Univeristy of Washington, xxx p.
Legg, N.T., 2013, Debris flows in glaciated catchments: A case study on Mount Rainier, Washington: M.S. Thesis, Oregon State University, 162 p.
Legg, N.T., A.J. Meigs, G.E. Grant and P.M. Kennard, 2014, Debris flow initiation in proglacial gullies on Mount Rainier, Washington: Geomorphology, Vol. 226, p. 249-260.
Richardson D., 1968, Glacier outburst floods in the Pacific Northwest: U.S. Geological Survey Professional Paper 600-D, D79-D86.
Samora, B., 1991, Chronology of flood events as noted in the superintendent's annual reports 1940-1991, Unpublished Internal Document, Mount Rainier National Park, WA, 13 p.
Scott, K.M., J.W. Vallance, and P.T. Pringle, 1995, Sedimentology, behavior, and hazards of debris flows at Mount Rainier, Washington: United States Geological Survey Professional Paper 1547, 56 p.
Vallance, J.W., C.L. Driedger and W.E. Scott, 2002, Diversion of meltwater from Kautz Glacier initiates small debris flows near Van Trump Park, Mount Rainier, Washington: Washington Geology, Vol. 30, No. 1/2, p. 17-19.
Vallance, J.W., M.L. Cunico and S.P. Schilling, 2003, Debris-flow hazards caused by hydrologic events at Mount Rainier, Washington: United States Geological Survey Open-File Report 2003-368, 4 p.
Walder, J.S. and C.L. Driedger, 1994, Geomorphic changed caused by outburst floods and debris flows at Mount Rainier, Washington, with emphasis on Tahoma Creek valley: U.S. Geological Survey Water-Resources Investigations Report 93-4093, 100 p.
Walder, J.S. and C.L. Driedger, 1994, Rapid geomorphic change caused by glacial outburst floods and debris flows along Tahoma Creek, Mount Rainier, Washington, USA: Arctic and Alpine Research, Vol. 26, No. 4, p. 319-327.
Walder, J.S. and C.L. Driedger, 1995, Frequent outburst floods from South Tahoma Glacier, Mount Rainier, USA: relation to debris flows, meterological origin and implications for subglacial hydrology: Journal of Glaciology, Vol. 41, No. 137, 11 p.