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Washington Natural Disasters and Weather Extremes

 
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The chance of earthquake damage in Washington is much higher than the national average. The risk of tornado damage in Washington is much lower than the national average.

Topics:Earthquake IndexVolcano IndexTornado IndexOther Weather Extremes EventsVolcanos NearbyHistorical Earthquake EventsHistorical Tornado Events

Earthquake Index, #3

Washington
4.04
U.S.
1.81

The earthquake index value is calculated based on historical earthquake events data using USA.com algorithms. It is an indicator of the earthquake level in a region. A higher earthquake index value means a higher chance of an earthquake.

Volcano Index, #6

Washington
0.0135
U.S.
0.0023

The volcano index value is calculated based on the currently known volcanoes using USA.com algorithms. It is an indicator of the possibility of a region being affected by a possible volcano eruption. A higher volcano index value means a higher chance of being affected.

Tornado Index, #46

Washington
9.06
U.S.
136.45

The tornado index value is calculated based on historical tornado events data using USA.com algorithms. It is an indicator of the tornado level in a region. A higher tornado index value means a higher chance of tornado events.

Other Weather Extremes Events

A total of 2,905 other weather extremes events from 1950 to 2010 were recorded in Washington. The following is a break down of these events:

TypeCountTypeCountTypeCountTypeCountTypeCount
Avalanche:34Blizzard:14Cold:23Dense Fog:6Drought:7
Dust Storm:31Flood:269Hail:252Heat:11Heavy Snow:588
High Surf:5Hurricane:0Ice Storm:24Landslide:27Strong Wind:657
Thunderstorm Winds:290Tropical Storm:0Wildfire:167Winter Storm:57Winter Weather:46
Other:397 

Volcanos Nearby

A total of 15 volcanoes are found in or near Washington.

NameRegionLatitudeLongitudeElevation (foot)TypeStatusLast Eruption
Glacier PeakUS-Washington, United States48.112-121.1133213StratovolcanoTephrochronologyLast known eruption 1700-1799
RainierUS-Washington, United States46.87-121.7584392StratovolcanoDendrochronologyLast known eruption 1800-1899
AdamsUS-Washington, United States46.206-121.493742StratovolcanoTephrochronologyLast known eruption A.D. 1-1499
BakerUS-Washington, United States48.786-121.823285StratovolcanoHistoricalLast known eruption 1800-1899
St. HelensUS-Washington, United States46.2-122.182549StratovolcanoHistoricalLast known eruption 1964 or later
Indian HeavenUS-Washington, United States45.93-121.821513Shield volcanoRadiocarbonLast known eruption B.C. (Holocene)
West CraterUS-Washington, United States45.88-122.081329Volcanic fieldRadiocarbonLast known eruption B.C. (Holocene)
HoodUS-Oregon, United States45.374-121.6943426StratovolcanoHistoricalLast known eruption 1800-1899
JeffersonUS-Oregon, United States44.692-121.83199StratovolcanoVarve CountLast known eruption A.D. 1-1499
Garibaldi, Mt.Canada, Canada49.85-1232678StratovolcanoRadiocarbonLast known eruption B.C. (Holocene)
Garibaldi LakeCanada, Canada49.92-123.032316Volcanic fieldHoloceneUndated, but probable Holocene eruption
Blue Lake CraterUS-Oregon, United States44.42-121.771230MaarRadiocarbonLast known eruption B.C. (Holocene)
Sand Mountain FieldUS-Oregon, United States44.38-121.931664Cinder coneRadiocarbonLast known eruption B.C. (Holocene)
WashingtonUS-Oregon, United States44.332-121.8372376Shield volcanoRadiocarbonLast known eruption A.D. 1-1499
BelknapUS-Oregon, United States44.285-121.8412095Shield volcanoRadiocarbonLast known eruption A.D. 1-1499

Historical Earthquake Events

A total of 88 historical earthquake events that had recorded magnitudes of 3.5 or above found in Washington.

DateMagnitudeDepth (km)LatitudeLongitude
1949-04-137N/A47.25-122.5
1965-04-296.5N/A47.97-117.34
1965-04-296.5N/A47.4-122.3
1946-02-155.8N/A47.3-122.9
1946-02-155.8N/A47.5-122.5
1936-07-165.8N/A46-118.5
1945-04-295.5N/A47.4-121.7
1939-11-135.3N/A47.4-122.6
1981-02-145.2746.35-122.24
1976-05-165.16248.8-123.36
1981-05-285346.53-121.41
1964-07-145N/A48.9-122.5
1974-04-204.9546.76-121.52
1965-10-234.8N/A47.5-122.4
1978-03-114.82547.42-122.71
1976-09-084.84847.38-123.08
1962-11-064.8N/A45.63-122.67
1980-05-184.7446.21-122.19
1980-05-274.7446.21-122.19
1969-11-104.7N/A48.52-121.4
1981-05-284.6346.53-121.42
1969-02-144.5N/A48.73-123.09
1967-05-254.5N/A48.1-122.8
1969-02-144.5N/A48.73-123.1
1981-05-134.51046.37-122.26
1967-03-074.4N/A47.8-122.7
1978-08-234.41748.38-123.2
1963-12-224.4N/A48.33-119.33
1971-12-284.42747.58-122.22
1983-10-314.34547.35-123.23
1968-09-064.3N/A47.8-122.8
1977-07-104.31148.53-122.45
1968-11-304.3N/A46.5-122.4
1976-09-024.32448.21-122.76
1984-04-114.3847.53-120.19
1978-03-314.22347.42-122.72
1970-10-244.22547.3-122.4
1983-08-284.25047.95-122.86
1981-02-184.2N/A47.21-120.9
1979-04-084.1546-118.45
1982-03-014.11246.35-122.25
1979-11-264.12048.54-122.41
1969-11-014.1N/A47.92-121.85
1964-10-154.1N/A47.7-122.1
1973-12-204.1146.9-119.3
1973-07-1841146.8-121.8
1969-10-094N/A46.77-121.72
1970-05-1841148.6-122.7
1979-01-194747.9-119.69
1978-12-3142047.58-121.85
1968-06-194N/A47.2-122.5
1981-02-024446.26-121
1975-04-164N/A47.57-122.91
1975-04-234N/A47.08-122.65
1978-03-0545748.06-123
1970-02-103.93347.7-122.3
1979-03-113.91646.45-122.4
1983-03-223.9446-118.44
1981-02-143.8746.34-122.24
1981-02-143.81146.36-122.25
1971-01-143.83047.4-123.6
1983-11-143.8646.67-120.59
1980-09-193.8647.91-121.87
1974-05-163.85448.14-122.92
1983-12-053.8646.93-120.7
1979-03-123.82448.19-122.76
1979-07-073.8546.52-122.17
1981-11-123.72647.94-122.42
1966-06-113.7N/A47.83-122.55
1979-07-283.7N/A46.67-120.59
1983-08-173.7548.14-124.48
1984-06-043.75346.21-123.06
1985-02-283.74747.49-122.59
1978-06-273.7146.86-120.96
1980-05-283.6846.34-122.2
1979-02-013.6947.53-121.92
1976-01-313.61848.35-122.32
1984-06-023.62147.42-122.7
1977-07-133.6N/A47.06-120.96
1981-03-153.6547.99-121.5
1979-11-153.61549.24-122.35
1980-06-083.54847.98-123.01
1981-11-263.52247.65-122.62
1969-11-283.5N/A47.4-122.7
1973-06-093.5N/A47.6-121.8
1981-02-143.51146.35-122.25
1973-02-223.52047.2-122.9
1985-03-183.55347.34-122.62

Historical Tornado Events

A total of 15 historical tornado events that had recorded magnitude of 2 or above found in Washington.

DateMagnitudeStart Lat/LogEnd Lat/LogLengthWidthFatalitiesInjuriesProperty DamageCrop DamageAffected County
1969-12-12347°30'N / 122°24'W47°32'N / 122°19'W3.80 Miles100 Yards01250K0King
1972-04-05345°36'N / 122°38'W45°38'N / 122°27'W8.70 Miles440 Yards630025.0M0Clark
1972-04-05347°45'N / 118°31'W47°46'N / 118°28'W01250K0Lincoln
1954-06-15247°26'N / 117°23'W0.50 Mile100 Yards0025K0Spokane
1957-04-30246°36'N / 120°30'W1.00 Mile23 Yards003K0Yakima
1957-05-06247°29'N / 117°12'W1.50 Miles23 Yards000K0Spokane
1958-06-26246°04'N / 118°56'W0.30 Mile50 Yards0025K0Walla Walla
1965-11-10246°42'N / 122°54'W1.50 Miles23 Yards0025K0Lewis
1966-03-14246°30'N / 117°48'W1.00 Mile13 Yards003K0Columbia
1970-11-24248°06'N / 122°12'W0.30 Mile30 Yards0025K0Snohomish
1971-08-30246°55'N / 117°21'W0.50 Mile17 Yards0025K0Whitman
1972-04-05247°42'N / 119°06'W0025K0Grant
1972-04-05248°36'N / 118°06'W1.00 Mile100 Yards0025K0Stevens
1978-07-17248°11'N / 117°08'W000K0Pend Oreille
1986-05-13248°13'N / 122°03'W0.30 Mile33 Yards000K0Snohomish


* The information on this page is based on the global volcano database, the U.S. earthquake database of 1638-1985, and the U.S. Tornado and Weather Extremes database of 1950-2010.


 
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