Azimuthal distribution of waveform amplitudes (IMAGE)

University of Texas at Austin

Azimuthal distribution of waveform amplitudes

Caption

A weak, magnitude 2.03 earthquake measured at different seismic frequencies ranging from 2.50Hz (hertz) to 35Hz. The University of Texas at Austin-led study revealed that a tremor’s low frequency seismic waves travel in a four-leaf clover pattern; above about 15Hz however, the pattern breaks down and seismic waves travel in all directions. The finding could change how we think about potential earthquake damage.

Credit

Daniel Trugman, Victor Tsai/AGU

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