Affiliation:
1. Institute of Geophysics, ETH Zürich, Zürich, Switzerland
Abstract
Abstract
Seismic wave propagation is intrinsically a process in time and space. Although seismometers make point measurements only, dense, large-aperture seismic networks allow the full observation and analysis of wave propagation. We present a new visual representation of teleseismic phases by combining time-dependent ground-motion visualizations with array analyses to connect the time-domain motion with phase information retrieved from the frequency–wavenumber (f-k) domain. This serves as an educational tool, but also for efficient identification of off-angle arrivals, dispersion, and anomalous seismic phases. The processing is applied to events with Mw≥7 observed at the AlpArray Seismic Network in Europe and two example teleseismic events are discussed in detail.
Publisher
Seismological Society of America (SSA)
Cited by
2 articles.
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