Post-earthquake dilatancy recovery
Abstract
Geodetic measurements of the 1964 Niigata, Japan earthquake and of three other examples are briefly examined. They show exponentially decaying subsidence for a year after the quakes. The observations confirm the dilatancy-fluid diffusion model of earthquake precursors and clarify the extent and properties of the dilatant zone. An analysis using one-dimensional consolidation theory is included which agrees well with this interpretation.
- Publication:
-
Geology
- Pub Date:
- November 1974
- Bibcode:
- 1974Geo........551S
- Keywords:
-
- Earth Movements;
- Earthquakes;
- Geodetic Surveys;
- Tectonics;
- Alaska;
- Crustal Fractures;
- Diffusion Theory;
- Dynamic Models;
- Geological Faults;
- Internal Pressure;
- Japan;
- Stress Relaxation;
- Geophysics