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INTENSIDAD MACROSÍSMICA ESI-07 Y EFECTOS GEOLÓGICOS DEL TERREMOTO DE PEDERNALES DEL 16.04. 2016 (Mw 7.8)

Abstract:

Abstract (Coseismic ground effects and ESI-07 intensity of the 2016 Mw 7.8 Pedernales Earthquake): Maximum intensities of VII to X ESI-07 have been assigned by the 2016 Mw 7.8 Pedernales earthquake (Ecuador), from measurements of earthquake environmental effects (EEE) in the whole Manabí province and the southern part of the Esmeraldas coastal region. Coseismic coastal uplift (primary effects), liquefaction and sand boils, ground cracks, lateral spreading and settlements with fissuring parallel to beachfront areas, longitudinal and transverse fractures in asphalt and concrete roads, landslides and rock falls (secondary effects), were documented over an area of 17.790 Km2. The VI ESI-07 intensities are assigned to Cube, Tacusa, Colope, southern part of the Esmeraldas province. The application of the ESI2007 Scale has allowed to construct an independent Macroseismic field where all EEE data are well confronted with those intensities obtained from European macroseismic scale (EMS98).