Search

Skip to main content Accessibility help

Only show content I have access to (0)

Chapters (1)

Last 3 years (1)

From year:

To year:

Apply

Earth and Environmental Sciences (1)

Cambridge University Press (1)

1 results

20 - Glacially Induced Faulting in Alaska
from Part V - Glacially Triggered Faulting Outside Europe
- By Jeanne Sauber, Chris Rollins, Jeffrey T. Freymueller, Natalia A. Ruppert
Edited by Holger Steffen, Odleiv Olesen, Raimo Sutinen
Book:

Glacially-Triggered Faulting

Published online:

02 December 2021

Print publication:

16 December 2021, pp 353-365
- Chapter
- - Get access
    
    Check if you have access via personal or institutional login
    
    Log in Register
- Export citation
Summary

Southern Alaska provides an ideal setting to assess how surface mass changes can influence crustal deformation and seismicity amidst rapid tectonic deformation. Since the end of the Little Ice Age, the glaciers of southern Alaska have undergone extensive wastage, retreating by kilometres and thinning by hundreds of metres. Superimposed on this are seasonal mass fluctuations due to snow accumulation and rainfall of up to metres of equivalent water height in fall and winter, followed by melting of gigatons of snow and ice in spring and summer and changes in permafrost. These processes produce stress changes in the solid Earth that modulate seismicity and promote failure on upper-crustal faults. Here we quantify and review these effects and how they combine with tectonic loading to influence faulting in the southeast, St. Elias and southwest regions of mainland Alaska.