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Slab2 - A Comprehensive Subduction Zone Geometry Model, Sumatra-Java Region


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Hayes, G., 2018, Slab2 - A Comprehensive Subduction Zone Geometry Model: U.S. Geological Survey data release,


Subduction zones are home to the most seismically active faults on the planet. The shallow megathrust interface of subduction zones host our largest earthquakes, and are the only faults capable of M9+ ruptures. Despite these facts, our knowledge of subduction zone geometry - which likely plays a key role in determining the spatial extent and ultimately the size of subduction zone earthquakes - is incomplete. Here we calculate the three- dimensional geometries of all active global subduction zones. The resulting model - Slab2 - provides for the first time a comprehensive geometrical analysis of all known slabs in unprecedented detail.


Attached Files

Click on title to download individual files attached to this item.
“Sumatra slab depth contours (text)”
823.54 KB text/plain
“Sumatra slab depth grid”
367.22 KB application/x-hdf
“Sumatra slab depth text file”
15.64 MB chemical/x-xyz
“Sumatra slab dip grid”
370.81 KB application/x-hdf
“Sumatra slab dip text file”
15.54 MB chemical/x-xyz
“Sumatra slab strike grid”
330.28 KB application/x-hdf
“Sumatra slab strike text file”
15.54 MB chemical/x-xyz
“Sumatra slab thickness grid”
299.81 KB application/x-hdf
“Sumatra slab thickness text file”
15.54 MB chemical/x-xyz
“Sumatra slab depth uncertainty grid”
375.41 KB application/x-hdf
“Sumatra slab depth uncertainty text file”
15.54 MB chemical/x-xyz
“Sumatra slab model clipping mask”
14.93 KB text/csv
“Sumatra slab model ArcGIS ShapeFiles”
356.08 KB application/zip


Description of the three dimensional geometries of global subducted slabs, Sumatra-Java Region.

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