Seismic characteristics of the weight-dropping source.

Seismic Source Identification Techniques

The characteristics of ambient seismic noise as a source for surface wave tomography

In this study, we cross-correlate waveforms of ambient seismic noise between 6 and 100 sec to study the origin of ambient seismic noise. We use one year of data recorded at numerical stations located in Europe, North America, and southern Africa. We measure the signal-to-noise ratios (SNR) of Rayleigh waves for positive and negative correlation time lags at periods of 8, 14, 25 and 50 sec to de...

Personality Characteristics of Alcoholics Dropping out of Treatment

Twenty seven male alcoholics were prospectively studied to find out the characteristics of those who drop out soon after discharge from the hospital. Seven persons, failed to make a single visit over a six-month period, and were termed 'dropouts'.On admission, after detoxification, all 27 patients were individually administered, the following tests:(1) Bhatia's Performance Test of Intelligence(...

Quantifying Seismic Source Parameter Uncertainties

We use data from a small aperture array in southern California to quantify variations in source parameter estimates at closely spaced stations (distances ranging from ∼7 to 350 m) to provide constraints on parameter uncertainties. Many studies do not consider uncertainties in these estimates even though they can be significant and have important implications for studies of earthquake source phy...

Source Separation on Seismic Data

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