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Slab2 - A Comprehensive Subduction Zone Geometry Model, Alaska Region


Publication Date
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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.
“Alaska slab depth contours (text)”
280.33 KB text/plain
“Alaska slab depth grid”
231.03 KB application/x-hdf
“Alaska slab depth text file”
9.76 MB chemical/x-xyz
“Alaska slab dip grid”
237.5 KB application/x-hdf
“Alaska slab dip text file”
9.7 MB chemical/x-xyz
“Alaska slab strike grid”
211.18 KB application/x-hdf
“Alaska slab strike text file”
9.7 MB chemical/x-xyz
“Alaska slab thickness grid”
179.79 KB application/x-hdf
“Alaska slab thickness text file”
9.7 MB chemical/x-xyz
“Alaska slab depth uncertainty grid”
226.53 KB application/x-hdf
“Alaska slab depth uncertainty text file”
9.7 MB chemical/x-xyz
“Alaska slab model clipping mask”
13.03 KB text/csv
“Alaska slab model ArcGIS ShapeFiles”
155.15 KB application/zip


Description of the three dimensional geometries of global subducted slabs, Alaska Region.

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