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Source parameters of the M w = 6.1 1910 Adra earthquake (southern Spain)
Instituto Andaluz de Geofisica, Universidad de Granada, Observatorio de Cartuja, Granada.
Departamento de Matemática Aplicada I, Universitat Politècnica de Catalunya.
Andaluz de Geofisica, Universidad de Granada, Observatorio de Cartuja, Granada.
Departamento de Matemática Aplicada II, Universitat Politècnica de Catalunya.
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2003 (English)In: Geophysical Journal International, ISSN 0956-540X, E-ISSN 1365-246X, Vol. 155, no 2, p. 539-546Article in journal (Refereed) Published
Abstract [en]

We examine and model analogue recordings from 6 early mechanical seismographs for the 1910 June 16 earthquake at Adra, Southern Spain. Modern standard, time-domain analysis techniques were applied to the historical data to estimate the source parameters of the event: The regional sparse network data were inverted for the deviatoric seismic moment tensor. The best moment tensor solution corresponds to a M o = 1.50 . 10 18 Nm, M w 6.1 oblique strike-slip event at 16 km depth. Our preferred faulting solution is: strike 122°, dip 80° rake - 137°, in very good agreement with available neo- and seismotectonic data. The source time function of this earthquake was estimated by deconvolving recordings of a M w 5.5 aftershock that occurred the same day. The time function indicates a total rupture time of 4.5 s, corresponding to estimates for mainshock rupture length of 12 km, and stress drop of 29 bar.

Place, publisher, year, edition, pages
2003. Vol. 155, no 2, p. 539-546
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URN: urn:nbn:se:ltu:diva-5708DOI: 10.1046/j.1365-246X.2003.02059.xLocal ID: 3e079e4e-c823-4fd1-9acd-6f82916e7d71OAI: oai:DiVA.org:ltu-5708DiVA, id: diva2:978582
Note
Upprättat; 2012; 20121001 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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Dineva, Savka

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