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Magnitude 6.5 KERMADEC ISLANDS

Magnitude 6.5 KERMADEC ISLANDS. Magnitude 5.9 KODIAK ISLAND, ALASKA. Two main groups of seismic waves. Body waves travel through the Earth’s interior. Surface waves are guided by the outer layers of the Earth. Two types of body waves. P-waves = Primary Waves = first arrival

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Magnitude 6.5 KERMADEC ISLANDS

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  1. Magnitude 6.5 KERMADEC ISLANDS Magnitude 5.9 KODIAK ISLAND, ALASKA

  2. Two main groups of seismic waves. • Body waves travel through the Earth’s interior. • Surface waves are guided by the outer layers of the Earth.

  3. Two types of body waves. • P-waves = • Primary Waves = • first arrival • S-waves = • Secondary Waves = second arrival

  4. Two types of surface waves. • Rayleigh waves: Discovered by Lord Rayleigh (1887). • Love waves: Discovered by A.E.H. Love (1911).

  5. Magnitude 6.5 KERMADEC ISLANDS 123º Magnitude 5.9 KODIAK ISLAND, ALASKA 52º

  6. Magnitude 6.5 KERMADEC ISLANDS 2009 May 16 00:53:46 UTC Magnitude 5.9 KODIAK ISLAND, ALASKA 2009 May 16 18:22:39 UTC

  7. 500 Hz 500 Hz 570 Hz 550 Hz 500 Hz 500 Hz 530 Hz 510 Hz

  8. 1 minute

  9. Magnitude 6.3 - Fiji 2005 December 13 03:16:09 UTC

  10. Magnitude 6.3 - Fiji 2005 December 13 03:16:09 UTC

  11. Plate Tectonics

  12. PlateTectonics Earthquakes correlated with: * Mid-Ocean Ridges * Fracture Zones * Ocean Trenches Earthquakes 1980-2001 (NEIC, M5)

  13. Mechanism of Plate Tectonics www.bibliotecapleyades.net

  14. Directions and Rates of Plate Motion

  15. http://whyfiles.org/031volcano/2.html U.S. Geological Survey AVO

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