Detecting seismic activity with a covariance matrix analysis of data recorded on seismic arrays

A Slow Seismic Event Recorded in Pasadena

A prominent long-period wave with a duration of 2000 sec or longer was recorded with a very-broadband system in Pasadena on June 18, 1988. This wave was not observed elsewhere, and i s considered of local origin. The acceleration amplitude is 2.5x10 -5 cm/sec 2 in the northwest direction, with the vertical component less than 10% of the horizontal. The horizontal acceleration can be interpreted...

Automatic Classification of Seismic Detections from Large-aperture Seismic Arrays

AUTOMATIC CLASSIFICATION OF SEISMIC DETECTIONS FROM LARGE APERTURE SEISMIC ARRAYS

Polarization analysis on three-component seismic data

The acquisition of three-component high-density seismic data in WARR surveys, aimed at the two or three-dimensional modelling of buried structures, makes it possible to apply statistical-analysis techniques to estimate the propagation parameters of waves. The availability of the three components allows the use of the information about the state of the seismic wave polarization in order to filte...

Analysis of Particle Motion Recorded by Three- Components Seismic Stations

seismic-py: Reading seismic data with Python pdfauthor

The field of seismic exploration of the Earth has changed dramatically over the last half a century. The Society of Exploration Geophysicists (SEG) has worked to create standards to store the vast amounts of seismic data in a way that will be portable across computer architectures. However, it has been impossible to predict the needs of the immense range of seismic data acquisition systems. As ...