Summary of Felt Reports for Duvall Earthquake

A summary of the 845 valid responses recieved during May, 1996 from our Web-based felt report form is listed below. We hope that people will use similar forms after future earthquakes to provide useful research information regarding the strength of ground shaking at different sites. These data were used to generate a contour intensity map shortly after the earthquake.

Felt Report Statistics as of end of May, 1996:

Total responses: 845

Shaking: Weak: 47, Mild: 174, Moderate: 350, Strong: 176, Violent: 20

Reaction: Not felt: 40, Very little reaction: 129, Excitement: 320, Somewhat frightened: 225, Very frightened: 66, Panic: 17,

Response: Took no action: 354, Moved to doorway: 293, Ducked and covered: 49, Ran outside: 57

Difficult standing: 91

Objects toppled off shelves: Few: 155, Many: 23, Everything: 0

Pictures askew: 260, Furniture moved: 45

Building damage: 55

Chimney cracks: minor 52, Some: 52 Major Chimney damage: 2

Wall and ceiling cracks: 6 Foundations: cracked: 3, Damaged: 0

Broken windows: 0 Broken Pipes: 1

Collapsed ceiling: 0, Building off fndt: 1, Toppled block wall: 1, Separated porch: 0

Maximum intensity: 7.2

A common comment from reports from near the epicenter were that many people heard very loud noise during the quake.

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