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Pelatihan : Techniques in Active Tectonic Study Juni 20-Juli 2, 2013 Instruktur: Prof. J Ramon Arrowsmith (JRA) Dari Arizona State University (ASU) - US.

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Presentation on theme: "Pelatihan : Techniques in Active Tectonic Study Juni 20-Juli 2, 2013 Instruktur: Prof. J Ramon Arrowsmith (JRA) Dari Arizona State University (ASU) - US."— Presentation transcript:

1 Pelatihan : Techniques in Active Tectonic Study Juni 20-Juli 2, 2013 Instruktur: Prof. J Ramon Arrowsmith (JRA) Dari Arizona State University (ASU) - US Tempat Pelaksanaan: Ruang Pangea, Laboratorium Gempabumi (LabEarth) – Puslit Geoteknologi LIPI dan Kuliah lapangan akan dilakukan disekitar Sesar Lembang, Jawa Barat. * Lebih jelas baca TOR/KAK dan daftar acara

2 Subduction II: Sumatra Outline of this lecture Reminder of coral microatolls 1935 earthquake (microatolls) 1833 earthquake (microatolls) 2004 earthquake (coseismic and post seismic from GPS) Supercycles on the Sumatran interface

3 Subduction zones and earthquakes induce coastal uplift and subsidence Indonesian fore arc islands Alaskan forest Honshu coast http://www.tectonics.caltech.edu/s umatra/educational.html And McAllpin

4 1964 Great Alaska earthquake

5 Porites coral grows in annual rings, much like a tree. It prefers to be just below the sea surface. http://www.tectonics.caltech.edu/outreach /highlights/sumatra/coral.html Coral Microatolls: natural geodesy

6 Burbank and Anderson, 2011, Tectonic Geomorphology, Chapter 5

7 http://www.tectonics.caltech.edu/outreach/animations/coral.html --Credit: Danny Natawidjaja, Kerry Sieh, Tectonics Observatory

8 Burbank and Anderson, 2011, Tectonic Geomorphology, Chapter 6

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10 The large yellow arrows in the lower panel point to small emergences due to three distant giant earthquakes (1797, 1833, and 1861; >M8.5), as well as a large emergence due to a local large earthquake (1935; M7.7). Credit: Danny Natawidjaja's Caltech thesis, 2002; http://www.tectonics.caltech.edu/outreach/highlights/sumatra/coral.html http://www.tectonics.caltech.edu/outreach/highlights/sumatra/coral.html Cross section of a Porites coral along with the resulting analysis of uplift and subsidence

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12 Burbank and Anderson, 2011, Tectonic Geomorphology, Chapter 6

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14 Zachariasen, et al., 1999

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23 Sieh, et al. 2008

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25 Subduction II: Sumatra Outline of this lecture Reminder of coral microatolls 1935 earthquake (microatolls) 1833 earthquake (microatolls) 2004 earthquake (coseismic and post seismic from GPS) Supercycles on the Sumatran interface


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