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Application of an iterative least-squares waveform inversion of strong-motion and teleseismic records to the 1978 Tabas, Iran, earthquake

S. Hartzell·C. Mendoza
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Abstract

An iterative least-squares technique is used to simultaneously invert the strong-motion records and teleseismic P waveforms for the 1978 Tabas, Iran, earthquake to deduce the rupture history. The effects of using different data sets and different parametrizations of the problem (linear versus nonlinear) are considered. A consensus of all the inversion runs indicates a complex, multiple source for the Tabas earthquake, with four main source regions over a fault length of 90 km and an average rupture velocity of 2.5 km/sec.

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Bulletin of the Seismological Society of AmericaArticle
90° N90° S · 180° W ← longitude → 180° E
Source-reported bounding extent: 32.76041757496367° to 35.59561293693908° latitude; 55.959619141672704° to 59.65102539167262° longitude. This indicates report coverage, not an exact sampling location. View area on OpenStreetMap.

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S. Hartzell, C. Mendoza. 1991. Application of an iterative least-squares waveform inversion of strong-motion and teleseismic records to the 1978 Tabas, Iran, earthquake. https://doi.org/10.1785/bssa0810020305

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