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Source parameters o...
Source parameters of the M w = 6.1 1910 Adra earthquake (southern Spain)
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- Stich, Daniel (författare)
- Instituto Andaluz de Geofisica, Universidad de Granada, Observatorio de Cartuja, Granada
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- Batlló, Josep (författare)
- Departamento de Matemática Aplicada I, Universitat Politècnica de Catalunya
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- Morales, José A. (författare)
- Andaluz de Geofisica, Universidad de Granada, Observatorio de Cartuja, Granada
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- Macià, Ramon (författare)
- Departamento de Matemática Aplicada II, Universitat Politècnica de Catalunya
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Dineva, Savka (författare)
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(creator_code:org_t)
- 2003
- 2003
- Engelska.
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Ingår i: Geophysical Journal International. - 0956-540X .- 1365-246X. ; 155:2, s. 539-546
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 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.
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