Post-Earthquake Dilatancy Recovery

Research Article| November 01, 1974 Post-Earthquake Dilatancy Recovery Christopher H. Scholz Christopher H. Scholz 1Lamont-Doherty Geological Observatory and Department of Geological Sciences, Columbia University, Palisades, New York 10964 Search for other works by this author on: GSW Google Scholar Geology (1974) 2 (11): 551–554. https://doi.org/10.1130/0091-7613(1974)22.0.CO;2 Article history first online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation Christopher H. Scholz; Post-Earthquake Dilatancy Recovery. Geology 1974;; 2 (11): 551–554. doi: https://doi.org/10.1130/0091-7613(1974)22.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Geodetic measurements made after the 1964 Niigata, Japan, earthquake (M = 7.5) show that a broad region both in and around the aftershock zone subsided at a rate which decreased nearly exponentially for a year following the earthquake. This is inferred to be a result of recovery of dilatancy which is believed to have preceded the earthquake. Analysis using one-dimensional consolidation theory agrees well with this interpretation and indicates that the dilatant zone was a layer approximately 10 km thick with a diffusivity of approximately 104 cm2/sec and a lateral extent of at least 50 km.Measurements made after the 1946 Nankaido, 1923 Kanto, and 1964 Alaska earthquakes suggest that they too were followed by dilatancy recovery. These observation provide further considerable information regarding this phenomenon can be obtained from post-earthquake observations. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.