Tilt and Seismicity Changes in the Shumagin Seismic Gap

Authors

R. J. Beavan, Columbia University
E. Hauksson, Columbia University
Stephen R. McNutt, Columbia UniversityFollow
R. Bilham, Lamont-Doherty Geological Observatory
K. H. Jacob, Lamont-Doherty Geological Observatory

Document Type

Article

Publication Date

1983

Digital Object Identifier (DOI)

https://doi.org/10.1126/science.222.4621.322

Abstract

Changes in the ground surface tilt and in the rate of seismicity indicate that an aseismic deformation event may have occurred between 1978 and 1980 along the plate boundary in the eastern Aleutians, Alaska, within the Shumagin seismic gap. Pavlof Volcano was unusually quiescent during this period. The proposed event would cause an increase of stress on the shallow locked portion of the plate boundary, bringing it closer to rupture in a great earthquake.

Was this content written or created while at USF?

No

Citation / Publisher Attribution

Science, v. 222, issue 4621, p. 322-325

Scholar Commons Citation

Beavan, R. J.; Hauksson, E.; McNutt, Stephen R.; Bilham, R.; and Jacob, K. H., "Tilt and Seismicity Changes in the Shumagin Seismic Gap" (1983). School of Geosciences Faculty and Staff Publications. 248.
https://digitalcommons.usf.edu/geo_facpub/248