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October 30, 2007

FYI: Facts and Stats About DR Causing Phenomenas

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EARTHQUAKE INFO

Richter Magnitude Scale Measure

 Magnitude

4

5

6

7

8

 Earthquake

Minor

Moderate

Strong

Major

Great

NOTE: Earthquake magnitude is generally measured using the
Richter Magnitude Scale while intensity is measured
using the Modified Mercalli Intensity Scale.

HURRICANE INFO

 Saffir/Simpson Hurricane Scale

 Category

I

II

III

IV

V

 Winds

74-95 mph

96-110 mph

111-130 mph

131-155 mph

155+ mph

 Storm Surge

4-5 ft

6-8 ft

9-12 ft

13-18 ft

18+ ft

TORNADO INFO

The Fujita-Pearson Scale

 Class

F0

F1

F2

F3

F4

F5

 Wind

40-72 mph

73-112 mph

113-157 mph

158-206 mph

207-260 mph

261-318 mph

Damage

Light

Moderate

Considerable

Severe

Devastating

Incredible

HAIL SIZE ESTIMATES

Size

Pea

Penny

Quarter

Half Dollar

Golfball

Tennis Ball

Baseball

Grapefruit

 Inches

.25

.75

1.00

1.25

1.75

2.50

2.75

4.00

Information compiled from the following sources: Hail and Wind Speed /Hurricane/Tornado - U.S. Department of Commerce, National Oceanic and Atmospheric Administration, and National Weather Service; Earthquake - US Army Corps of Engineers)

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