GNGTS 2018 - 37° Convegno Nazionale

GNGTS 2018 S essione 3.3 775 of real space and width in Fourier space. A broad function will give a poor time resolution but a good frequency resolution, and vice versa. The width of the wavelet is proportional to the sampling rate of the signal. Fig. 1 - Velocity waveform (upper), Ricker wavelet power spectrum (center) and Morlet wavelet spectrum (lower) of 1992 Landers earthquake (M w = 7.3), Yermo Fire Station (Epicentral distance = 85.99 km). Red and blue colors represent high and low concentration of power, respectively.