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The corner frequencies and stress drops of intraplate earthquakes in the northeastern United States
This article presents the estimation of stress drops for small to middle-sized intraplate earthquakes in the northeastern United States. The vertical-component Sg and Lg waves of 49 earthquakes wereExpand
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Variability of crustal attenuation in the northeastern United States from Lg waves
High-quality, digital seismograms from eight pairs of collocated earthquakes in the northeastern United States were analyzed to determine accurate source spectrum corner frequencies. This wasExpand
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Determination of Seismic Energy from Lg Waves
Seismic energy is a physical concept related to broadband information on the source radiation; this is different from seismic moment, which is related to low-frequency information. Improved estimatesExpand
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INVESTIGATION OF WEAR OF AGRICULTURAL TILLAGE TOOLS
A centrifugal accelerated wear testing apparatus was designed and fabricated for determining wear characteristics of agricultural tool materials in sand and soil. Wear tests were carried out withExpand
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