In
geology, aseismic creep is measurable surface displacement along a
fault in the absence of notable
earthquakes. An example is along the
Calaveras fault in
Hollister,
California. Streets crossing the fault in Hollister show significant offset and several houses sitting atop the fault are notably twisted (yet inhabitable). The city attracts geologist and geology students almost weekly. There is also significant aseismic creep along the
Hayward fault in and north of
Hayward, California, but insufficient to prevent a substantial earthquake.
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A very slow movement along a fault which is unaccompanied by perceptible earthquakes.