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Delaware Natural Disasters and Weather Extremes

 
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The chance of earthquake damage in Delaware is lower than the national average. The risk of tornado damage in Delaware is lower than the national average.

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

Earthquake Index, #8

Delaware
1.54
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, #14

Delaware
0.0000
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, #28

Delaware
107.77
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 1,677 other weather extremes events from 1950 to 2010 were recorded in Delaware. The following is a break down of these events:

TypeCountTypeCountTypeCountTypeCountTypeCount
Avalanche:0Blizzard:2Cold:21Dense Fog:32Drought:52
Dust Storm:1Flood:240Hail:87Heat:70Heavy Snow:43
High Surf:37Hurricane:1Ice Storm:1Landslide:0Strong Wind:177
Thunderstorm Winds:465Tropical Storm:3Wildfire:11Winter Storm:34Winter Weather:88
Other:312 

Volcanos Nearby

No volcano is found in or near Delaware.

Historical Earthquake Events

No historical earthquake events that had recorded magnitudes of 3.5 or above found in Delaware.

No historical earthquake events found in or near Delaware.

Historical Tornado Events

A total of 12 historical tornado events that had recorded magnitude of 2 or above found in Delaware.

DateMagnitudeStart Lat/LogEnd Lat/LogLengthWidthFatalitiesInjuriesProperty DamageCrop DamageAffected County
1961-04-28339°40'N / 75°34'W0.30 Mile30 Yards0025K0New Castle
1954-07-01239°27'N / 75°44'W1.00 Mile50 Yards003K0New Castle
1955-08-12238°32'N / 75°04'W38°33'N / 75°01'W2.70 Miles133 Yards013K0Sussex
1967-01-27239°01'N / 75°35'W0.50 Mile50 Yards07250K0Kent
1977-06-09239°02'N / 75°28'W0.20 Mile40 Yards01250K0Kent
1979-09-05239°47'N / 75°29'W2.50 Miles200 Yards05250K0New Castle
1983-07-21239°10'N / 75°43'W1.00 Mile20 Yards29250K0Kent
1984-07-18238°48'N / 75°35'W1.50 Miles80 Yards0025K0Sussex
1989-06-09239°47'N / 75°41'W2.00 Miles100 Yards012.5M0New Castle
1990-10-18239°47'N / 75°35'W1.00 Mile430 Yards00250K0New Castle
1992-07-31239°01'N / 75°31'W39°02'N / 75°26'W4.00 Miles20 Yards00250K0Kent
2004-09-28239°41'N / 75°36'W39°44'N / 75°35'W5.00 Miles150 Yards001.0M0New Castle
 Brief Description: An F2 (on the Fujita scale) tornado touched down in northern New Castle County with maximum winds estimated at 130 mph. The path length was 5.0 miles long with a maximum path width of 150 yards. The tornado touched down near and was observed at the New Castle County Airport. The northern end of the tornado track was in Elsmere. Significant damage did occur along the path of this tornado, particularly to some of the planes at the airport and industrial buildings near the airport. In addition, five persons were injured. The tornado damaged five C-130 cargo planes at the New Castle County Airport, caused thousands of pounds of jet fuel to spill and damaged hangers. It tore through the Newport Industrial Park along Delaware State Route 141. It tossed long strips of metal siding into the air and onto roads. Windows were shattered, walls peeled away and trees and light poles were snapped. The roof and whole side of the United Electric Supply building was torn away. Delaware State Route 141 and some nearby side streets were closed. Gas service was shut off to prevent explosions. On Bellecor Drive, a self-storage facility suffered major damage. One man at the business was injured after he was trapped under a fallen refrigerator. Three people were injured at the airport itself. A man in Elsmere was hit by a fallen tree limb. The tornado also caused damaged to homes in Wilmington Manor and Chelsea Estates near the airport. In Elsmere, the tornado tore shingles and vent covers from the Corpus Christi Elementary School. The ensuing heavy rain damaged the gymnasium. In the Red Clay Consolidated School District, the tornado also caused minor damage to the Richardson Park Elementary School.


* 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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