Identifying source of infrasonic waves from Denali earthquake

John V. Olson, Charles R. Wilson, Roger A. Hansen, AGU

The source of acoustic signals associated with the 2002 7.9 magnitude Denali earthquake was traced by estimating the speed of the waves as they moved eastward along the Denali fault. The ground motion from the Denali temblor was linked with observed infrasound signals and it was found that large local ground motions produced the unusual infrasonic signature. The largest amplitude waves correspond to the regions along the fault line that showed the largest ground motion.

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Subject: Environmental Science:Natural Hazards:Earthquakes
Resource Type: Scientific Resources:Overview/Reference Work:AGU Highlights
Special Interest: Hazards
Theme: Teach the Earth:Teaching Topics:Earthquakes, Teach the Earth:Incorporating Societal Issues:Hazards, Teach the Earth:Course Topics:Environmental Science