Measuring EQ and effects of EQ
Measuring EQ Scaled a/c to intensity of shock or magnitude Rich ment EQ above magnitude of 5 on this scale is destructive ter scale is used for measure
Seismograph frame wire -weight rotating drum vibrations base
The Richter Scale Each level is 10x bigger than the previous Description Richter magnitudes Micro Very Minor 2.0-2.9 Minor Light Moderate 5.0-5.9 Strong Major Great Rarely Meteoric 10.0+ Less than 2 3.0-3.9 4.0-4.9 6.0-6.9 7.0-7.9 8.0-8.9 9.0-9.9
Effects ofEQ 1. On landforms Ground shaking Differential ground settlement Land and mud slides Soil liquefaction Ground lurching Avalanches . 2. On life and properties Ground displacement Floods from dam and Levee failures Fires Structural collapse . Falling objects . Tsunami
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