F.Y.I.
Facts and Stats About
Disaster Causing Phenomenas
EARTHQUAKE INFO
|
Richter Magnitude Scale Measure |
|
|
Magnitude |
Earthquake |
|
4 |
Minor |
|
5 |
Moderate |
|
6 |
Strong |
|
7 |
Major |
|
8 |
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 | Winds | Storm Surge |
| I | 74-95 | 4-5 ft |
| II | 96-110 mph | 6-8 ft |
| III | 111-130 mph | 9-12 ft |
| IV | 131-155 mph | 13-18 ft |
| V | 155+ mph | 18+ ft |
TORNADO INFO
|
The Fujita-Pearson Scale |
||
| Class | Wind | Damage |
| F0 | 40-72 mph | Light |
| F1 | 73-112 mph | Moderate |
| F2 | 113-157 mph | Considerable |
| F3 | 158-206 mph | Severe |
| F4 | 207-260 mph | Devastating |
| F5 | 261-318 mph | Incredible |
HAIL SIZE ESTIMATES
| Size | Inches |
| Pea | .25 |
| Penny | .75 |
| Quarter | 1.00 |
| Golfball | 1.75 |
| Tennis Ball | 2.50 |
| Baseball | 2.75 |
| Grapefruit | 4.00 |
| Half Dollar | 1.25 |
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)
DR World Main Index | Return to DRJ's Homepage
Disaster Recovery World© 1999, and Disaster Recovery Journal©
1999, are copyrighted by Systems Support, Inc. All rights reserved. Reproduction in whole or
part is prohibited without the express written permission form Systems Support, Inc.