A fault that does not extend upward to the Earth's surface. It usually terminates upward in the axial region of an anticline. If is dip is less than 45 degrees, it is a blind thrust. (IASPEI)
James Daniell (compiler), Glossary of Earthquake Terms (shortened list of the most important terms), Earthquake-Report.com, Guam, USA 2011. http://earthquake-report.com/2011/02/15/glossary-o f-earthquake-terms-2/, (ND/ Erthq - Brit) {898}