Fault creep also called aseismic creep happens at the earths surface on a small fraction of faults.
Geologic creep. This diagram shows how a single particle gradually moves down the slope. A geologic map shows geologic units of various rock types and ages. Finding exoplanets in the milky way and beyond space discovery documentary touch your heart 231 watching. Geologic units of similar ages are shown on a geologic map using the same color and symbol.
Fremont california a house sitting on the calaveras fault in 2003. Observation of the effects of creep such as bent trees tilted fences and cracked walls usually leads to identification of the problem. Because creep moves materials so slowly it is difficult to discern directly. Creep in geology slow downslope movement of particles that occurs on every slope covered with loose weathered material.
Creeping behavior happens on all kinds of faults but its most obvious and easiest to visualize on strike slip faults which are vertical cracks whose opposite sides move sideways with respect to each other. Click to view larger and see the legend. Creep takes a long time because each particle might only move a millimetre to a few centimetres at a time. Ice crystals picking up soil particles on prospect mt in the adirondacks.
Even soil covered with close knit sod creeps downslope as indicated by slow but persistent tilting of trees poles gravestones and other objects set into the ground on hillsides. Geological creep sonically surfing the landscape disparate forms released 20 march 2014 1. Creep of the hayward fault has displaced this curb since its construction about 15 years prior. Geological creep portland oregon.