Análisis geológico del terremoto de Torrevieja de 1829 (Alicante, SE España)

  1. P.G. Silva 1
  2. J. Elez 1
  3. Jorge L. Giner-Robles 2
  4. R. Pérez-López 3
  5. Elvira Roquero 4
  6. M.A. Rodríguez-Pascua 3
  7. Teresa Bardají 5
  8. A.M. Martínez-Graña 1
  1. 1 Universidad de Salamanca
    info

    Universidad de Salamanca

    Salamanca, España

    ROR https://ror.org/02f40zc51

  2. 2 Universidad Autónoma de Madrid
    info

    Universidad Autónoma de Madrid

    Madrid, España

    ROR https://ror.org/01cby8j38

  3. 3 Instituto Geológico y Minero de España, IGME
  4. 4 Universidad Politécnica de Madrid
    info

    Universidad Politécnica de Madrid

    Madrid, España

    ROR https://ror.org/03n6nwv02

  5. 5 Universidad de Alcalá
    info

    Universidad de Alcalá

    Alcalá de Henares, España

    ROR https://ror.org/04pmn0e78

Libro:
XV Reunión Nacional de Cuaternario Bizkaia Aretoa: Bilbao, 1-5 julio 2019. Libro de resúmenes

Editorial: Universidad del País Vasco = Euskal Herriko Unibertsitatea

ISBN: 978-84-17713-16-4

Año de publicación: 2019

Páginas: 434-437

Congreso: Reunión Nacional de Cuaternario (15. 2019. Bilbao)

Tipo: Aportación congreso

Resumen

This work examines from a geological point of view the data on the 1829 Torrevieja Earthquake (IX-X Intensity) reported by Larramendi (1829) and De Prado (1863). The study evidences the dichotomy of the dominant geological processes occurred in the hanging-wall and foot-wall of the Lower Segura reverse fault, the seismogenic source of the earthquake. In the foot-wall (Lower Segura Depression) the poorly compactednature of sediments and reclaimed lands triggered devastating liquefaction, ground cracking and lateral spreading processes affecting the river margins and the ditch irrigation-system of the area (ancient delta distributary channels). On the contrary, in the hanging-wall hydrogeological anomalies were no widespread, but a permanent uplift of c. 20-22 cm was reported in the littoral zone and the Torrevieja salt-marshes. The uplift was recorded between Torrevieja and Cabo Cervera, about 4 km to the north, butprobably the uplift affected to the c.15 km separating Torrevieja and Guadarmar, all along the entire hanging-wall of the LowerSegura Fault.