Plate

antarctic plate

0° 30' 60" 90' 120° 150° 180° -150° -120" -90' -60° -30' 0'

Figure 2.2. The global distribution of both shallow and deep seismicity for well-located earthquakes with magnitude > 5.1. The shallow seismicity closely delineates plate boundaries. Based on Engdahl et al. (1998).

0" 30° 60° 90° 120" 150° 180° -150° -120' -90° -60° -30° 0°

Figure 2.3. Age distribution of the oceanic crust as determined by magnetic anomalies on the seafloor. Based on Mueller et al. (1997).

0* 30° 60" 90° 120" 150° 180° -150° -120° -90" -60" -30° 0°

Figure 2.3. Age distribution of the oceanic crust as determined by magnetic anomalies on the seafloor. Based on Mueller et al. (1997).

Plate With And 100
too -75 -50 -25 0 25 50 75 100

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