3 documents found, page 1 of 1
INVESTIGAÇÃO DA SEQUÊNCIA SÍSMICA INICIADA PELO SISMO DE ARRAIOLOS (15/1/2018, ...
Matias, Luis; Rio, Inês; Waschilala, Piedade; Vales, Dina; Borges, José; Dias, Nuno; Carrilho, Fernando; Caldeira, Bento; Custódio, SusanaThe Arraiolos earthquake occurred the 15th January 2018 at 11:51 UTC with a magnitude ML=4.9 The main shock was followed by many aftershocks, some of them felt by the population, such as the ML=3.1 2018-02-01 event. A few hours after the main shock the ICT (Instituto de Ciências da Terra, Évora) and the IDL (Instituto Dom Luiz) began the deployment of a dense temporary seismic network that attained a total of 3...
The Arraiolos – Portugal – Moderate-Sized 2018 (M = 4.9) earthquake of January ...
Borges, José; Caldeira, Bento; Fontiela, João; Custódio, Susana; Dias, Nuno; Waschilala, Piedade; Oliveira, Rui; Vales, Dina; Bezzeghoud, MouradOn 15 January 2018 at 11:51 UTC, an earthquake of 4.9 ML occurred in the Northeast of Arraiolos region near Aldeia da Serra village. The hypocentral location, determined by Instituto Português do Mar e da Atmosfera (IPMA), has coordinates 38.79 N, 7.93 W at 11 km depth. The focal mechanisms determined by P-wave first motion polarities and waveforms inversion indicate a dominance of strike-slip events with nodal...
Intraplate seismicity across the Cape Verde swell: a contribution from a tempor...
Vales, Dina; Dias, Nuno; Rio, Inês; Matias, Luís; Silveira, Graça; Madeira, JFA; Webber, Michael; Carrilho, Fernando; Haberland, ChristianWe present an analysis and characterization of the regional seismicity recorded by a temporary broadband seismic network deployed in the Cape Verde archipelago between November 2007 and September 2008. The detection of earthquakes was based on spectrograms, allowing the discrimination from low-frequency volcanic signals, resulting in 358 events of which 265 were located, the magnitudes usually being smaller tha...