Institut für Geophysik
Prof. Dr. Christine Thomas

Corrensstraße 24 48149 Münster
Germany

Tel: +49 251 83-33591
Fax: +49 251 83-36100

Seismic waves and seismology: How to investigate the Earth

Earth1 Waves1 Waves2

If the Earth had a simple structure (mantle, outer core, inner core) and velocity and density would increase with depth, we would expect only very few seismic arrivals and simple waveforms.
The Earth, however, provides much more complicated data:

Waves3 Waves4

When a seismic discontinuity is added to (e.g.,) the lowermost mantle, an additional arrival appread in the seismogram:

Earth2 Waves5

Slowness and Backazimuth


Impressum | © 2008 Institut für Geophysik
Institut für Geophysik
Prof. Dr. Christine Thomas

Corrensstraße 24
· 48149 Münster
Germany

Tel: +49 251 83-33591 · Fax: +49 251 83-36100
E-Mail: