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Seismicity along the Azores-Gibraltar region controlled by global plates’kinema...
Adam, C; Bezzghoud, M; Buforn, E; borges, JF; Caldeira, BThe seismicity along the western part of the Eurasia-Nubian plate boundary has been widely studied and is charac- terized by a very complex pattern. The movement is transtensional in the Azores, dextral along the Gloria transform and convergent between the SW Atlantic margin and the Ibero-Maghrebian zone. In order to understand geograph- ical evolution of the seismicity pattern along this plate frontier, we com...
The 2007 Azores earthquakes: A case of triggering?
Buforn, E; Bezzghoud, M; Borges, JF; Caldeira, BOn 5 April (Mw=6.3) and 7 April 2007 (Mw=6.1 ) two earthquakes occur at the Formigas Islets (Azores Islands), both with same epicenter and felt (I=V/VI MSK) in S. Miguel Island. The rupture process of these earthquakes has been studied from body wave inversion of broad band data at telesesimic distances. Results obtained shown normal faulting for both shocks, with planes oriented in NW–SE direction, with focus ...
Study of the fracture process of Al Hoceima earthquake (24/02/2004, Mw=6.2) fro...
Buforn, E; Bezzghoud, M; del Fresno, C; Borges, JF; Madariaga, RWe studied the source time function (STF) and rupture process of the 2004 Alhoceima, Morocco earthquake of Mw = 6.2 using teleseismic and regional broad-band data. From regional broad-band data, STF function was determined using three large after- shocks as empirical Green functions. We inverted of body wave forms at teleseismic distances using an extended source model with rupture velocity between 2.5-3.0 km a...
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