Surface faulting: A preliminary view
This description of surface faulting near Spitak, Armenia, is based on a field inspection made December 22-26, 1988. The surface rupture west of Spitak, displacement of the ground surface, pre-earthquake surface expressions of the fault, and photolineaments in landsat images are described and surface faulting is compared to aftershocks. It is concluded that the 2 meters of maximum surface displacement fits well within the range of reliably measured maximum surface offsets for historic reverse and oblique-reverse faulting events throughout the world. By contrast, the presently known length of surface rupture near Spitak, between 8 and 13 km, is shorter than any other reverse or oblique-reverse event of magnitude greater than 6.0. This may be a reason to suppose that additional surface rupture might remain unmapped.
Citation Information
Publication Year | 1989 |
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Title | Surface faulting: A preliminary view |
DOI | 10.1193/1.1585232 |
Authors | R. V. Sharp |
Publication Type | Article |
Publication Subtype | Journal Article |
Series Title | Earthquake Spectra |
Index ID | 70015627 |
Record Source | USGS Publications Warehouse |