Slope instabilities triggered by the 2011 Lorca earthquake (Mw 5.1): a comparison and revision of hazard assessments of earthquake-triggered landslides in Murcia
DOI:
https://doi.org/10.21701/bolgeomin.123.4.004Keywords:
earthquake, hazard, Lorca, Newmark, rock fall, susceptibilityAbstract
The Lorca basin has been the object of recent research aimed at studying the phenomenon of earthquakeinduced landslides and their assessment within the context of different seismic scenarios, bearing in mind the influence of soil and topographical amplification effects. Nevertheless, it was not until the Lorca earthquakes of 11 May 2011 that it became possible to adopt a systematic approach to the problem. We provide here an inventory of slope instabilities triggered by the Lorca earthquakes comprising 100 cases, mainly small rock and soil falls (1 to 100 m3). The distribution of these instabilities is compared to two different earthquake-triggered landslide hazard maps: one considering the occurrence of the most probable earthquake for a 475-yr return period in the Lorca basin (Mw = 5.0), which was previously published on the basis of a low-resolution digital elevation model (dEM), and a second one matching the occurrence of the Mw = 5.1 2011 Lorca earthquake, which was undertaken using a higher resolution dEM. The most frequent Newmark displacement values related to the slope failures triggered by the 2011 Lorca earthquakes are smaller than 2 cm in both hazard scenarios and coincide with areas where significant soil and topographical seismic amplification effects have occurred.
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References
Akkar, S. and Bommer, J.J. 2007. Empirical prediction equations for peak ground velocity derived from strong motion records from Europe and the Middle East. Bulletin of the Seismological Society of America, 97, 511-530. https://doi.org/10.1785/0120060141
Akkar, S. and Bommer, J.J. 2010. Empirical Equations for the Prediction of PGA, PGV, and Spectral Accelerations in Europe, the Mediterranean Region, and the Middle East. Seismological Research Letters, 81(2), 195-206. https://doi.org/10.1785/gssrl.81.2.195
Alfaro, P., Delgado, J., García-Tortosa, F.J., Lenti, L., López, J.A., López-Casado, C. and Martino, S. 2012. Widespread landslides induced by the Mw 5.1 earthquake of 11 May 2011 in Lorca, SE Spain. Engineering Geology, 137-138, 40-52. https://doi.org/10.1016/j.enggeo.2012.04.002
Ambraseys, N.N., Douglas, J., Sarma, S.K. and Smit, P.M. 2005. Equations for the Estimation of Strong Ground Motions from Shallow Crustal Earthquakes Using Data from Europe and the Middle East: Horizontal Peak Ground Acceleration and Spectral Acceleration. Bulletin of Earthquake Engineering, 37, 1-53. https://doi.org/10.1007/s10518-005-0183-0
Benito, B., Capote, B., Murphy, P., Gaspar-Escribano, J.M., Martínez-Díaz, J.J., Tsige, M., Stich, D., García-Mayordomo, J., García, M.J., Jiménez, M.E., Insua-Arévalo, J.M., Álvarez-Gómez, J.A. and Canora, C. 2007. An overview of the damaging and low magnitude La Paca earthquake (Mw 4.8) on January 29th, 2005. Context, seismotectonics, and seismic risk implications for Southeast Spain. Bulletin of the Seismological Society of America, 97, 671-690. https://doi.org/10.1785/0120050150
Bindi, D., Luzi, L., Massa, M. and Pacor, F. 2010. Horizontal and vertical ground motion prediction equations derived from the Italian Accelerometric Archive (ITACA). Bulletin of Earthquake Engineering, 8, 1209-1230. https://doi.org/10.1007/s10518-009-9130-9
Bindi, D., Pacor, F., Luzi, L., Puglia, R., Massa, M., Ameri, G. and Paolucci, R. 2011. Ground motion prediction equations derived from the Italian strong motion database. Bulletin of Earthquake Engineering, 9(6), 1899-1920. https://doi.org/10.1007/s10518-011-9313-z
Boore, D.M. and Atkinson, G.M. 2008. Ground-Motion Prediction Equations for the Average Horizontal Component of PGA, PGV, and 5%-Damped PSA at Spectral Periods between 0.01 s and 10.0 s. Earthquake Spectra, 24, 99-138. https://doi.org/10.1193/1.2830434
Buforn, E., Benito, B., Sanz de Galdeano, C., Fresno, C., del Muñoz, D. and Rodríguez, I. 2005. Study of the damaging earthquakes of 1911, 1999, and 2002 in the Murcia, Southeastern Spain region: seismotectonic and seismic-risk implications. Bulletin of the Seismological Society of America, 95, 549-567. https://doi.org/10.1785/0120040041
Capolongo, D., Refice, A. and Mankelow, J. 2002. Evaluating earthquake-triggered landslide hazard at the basin scale through GIS in the Upper Sele river valley. Surveys in Geophysics, 23, 595-625. https://doi.org/10.1023/A:1021235029496
CEN (Comité Européen of Normalisation) 2003. Eurocode 8: design of structures for earthquake resistance. Part 5, Foundations, retaining structures and geotechnical aspects. prEN 1998-5:2003 E, Bruselas, 44 pp.
Delgado, J., Peláez, J.A., Tomás, R., García-Tortosa, F.J., Alfaro, P. and López Casado, C. 2011. Seismically-induced landslides in the Betic Cordillera (S Spain). Soil dynamics and Earthquake Engineering, 31, 1203-1211. https://doi.org/10.1016/j.soildyn.2011.04.008
Douglas, J., Faccioli, E., Cotton, F. and Cauzzi, C. 2010. Selection of ground-motion prediction equations for GEM1. GEM Technical Report 2010-E1, GEM Foundation, Pavia, Italy, 20/04/2012, http://www.globalquakemodel.org/node/747
FEMA 2009. NEHRP Recommended Seismic Provisions for New Buildings and other Structures. Federal Emergency Management Agency, FEMA Report P-750, 388 pp.
García-Mayordomo, J., Gaspar-Escribano, J.M. and Benito, B. 2007. Seismic hazard assessment of the Province of Murcia (SE Spain): analysis of source contribution to hazard. Journal of Seismology, 11(4), 453-471. https://doi.org/10.1007/s10950-007-9064-0
Gaspar-Escribano, J.M. and Benito, B. 2007. Ground motion characterization of low-to-moderate seismicity zones and implications for seismic design: lessons from recent, Mw~4.8, damaging earthquakes in Southeast Spain. Bulletin of the Seismological Society of America, 97, 531-544. https://doi.org/10.1785/0120050133
Gaspar-Escribano, J.M., Benito, B. and García-Mayordomo, J. 2008. Hazard-consistent response spectra in the Region of Murcia (Southeast Spain): comparison to earthquake-resistant provisions. Bulletin of Earthquake Engineering, 6(2), 179-196. https://doi.org/10.1007/s10518-007-9051-4
IGN 2011. Informe del sismo de Lorca del 11 de mayo de 2011. Instituto Geográfico Nacional, 132 pp, 20/04/2012, http://www.ign.es
Jibson, R.W. 2007. Regression models for estimating coseismic landslide displacement. Engineering Geology, 91, 209-218. https://doi.org/10.1016/j.enggeo.2007.01.013
Jibson, R.W., Harp, E.L. and Michael, J.A. 2000. A method for producing digital probabilistic seismic landslide hazard maps. Engineering Geology, 58, 271-289. https://doi.org/10.1016/S0013-7952(00)00039-9
Keefer, D.K. 1984. Landslides caused by earthquakes. Geological Society of America Bulletin, 95, 406-421. https://doi.org/10.1130/0016-7606(1984)95<406:LCBE>2.0.CO;2
Keefer, D.K. 2002. Investigating landslides caused by earthquakes - A historical review. Surveys in Geophysics, 23, 473-510. https://doi.org/10.1023/A:1021274710840
Martínez-Díaz, J.J. and Hernández-Enrile, J.L. 2001. Using travertine deformations to characterize paleoseismic activity on an active oblique-slip fault: the Alhama de Murcia Fault (Betic Cordillera-Spain). Acta Geologica Hispanica, 36(3-4), 297-313.
Martínez-Díaz, J.J., Masana, E., Hernández-Enrile, J.L. and Santanach, P. 2001. Evidence for coseismic events of recurrent prehistoric deformation along the Alhama de Murcia Fault, southeastern Spain. Acta Geologica Hispanica, 36(3-4), 315-327.
Masana, E., Martínez-Díaz, J.J., Hernández-Enrile, J.L. and Santanach, P. 2004. The Alhama de Murcia fault (SE Spain), a seismogenic fault in a diffuse plate boundary, Seismotectonic implications for the Ibero-Magrebian region. Journal of Geophysical Research, 109(1), 1-17. https://doi.org/10.1029/2002JB002359
Michetti, A.M., Esposito, E., Guerrieri, L., Porfido, S., Serva, L., Tatevossian, R., Vittori, E., Audemard, F., Azuma, T., Clague, J., Comerci, V., Gurpinar, A., Mc Calpin, J., Mohammadioun, B., Mörner, N.A., Ota, Y. and Roghozin, E. 2007. Intensity Scale ESI 2007. En: Guerrieru, L. and Vittori, E. (eds.), Mem descr Carta Geol d'Italia, 74, Servizio Geologico d'Italia, Dipartimento Difesa del Suolo, APAT, Roma, Italia.
NATMUR 2009. 4 × 4 m digital Elevation Model. Natmur-08 Project. Consejería de Agricultura y Agua. Dirección General de Patrimonio Natural y Biodiversidad de la Región de Murcia, 20/04/2012, ftp://meristemum.carm.es/Natmur08/5.MDE/5.2%20NatMur08_MDE_mds
Newmark, N.M. 1965. Effects of earthquakes on dams and embankments. Geotechnique, 15(2), 139-160. https://doi.org/10.1680/geot.1965.15.2.139
Rodríguez, C.E., Bommer, J.J. and Chandler, R.J. 1999. Earthquake-induced landslides: 1980- 997. Soil dynamics and Earthquake Engineering, 18, 325-346. https://doi.org/10.1016/S0267-7261(99)00012-3
Rodríguez-Peces, M.J. 2010. Analysis of earthquake-triggered landslides in the South of Iberia: Testing the use of the Newmark's method at different scales. Tesis Doctoral, Universidad de Granada, España, 254 pp.
Rodríguez-Peces, M.J., García Mayordomo, J., Azañón Hernández, J.M. y Jabaloy Sánchez, A. 2008. Evaluación regional de inestabilidades de ladera por efecto sísmico en la Cuenca de Lorca (Murcia): Implementación del método de Newmark en un SIG. Boletín Geológico y Minero, 119 (4), 459-472.
Rodríguez-Peces, M.J., García-Mayordomo, J., Azañón, J.M. and Jabaloy, A. 2011a. Regional Hazard Assessment of Earthquake-Triggered Slope Instabilities Considering Site Effects and Seismic Scenarios in Lorca Basin (Spain). Environmental and Engineering Geoscience, 17(3), 183-196. https://doi.org/10.2113/gseegeosci.17.2.183
Rodríguez-Peces, M.J., Pérez-García, J.L., García-Mayordomo, J., Azañón, J.M., Insua-Arévalo, J.M. and Delgado-García, J. 2011b. Applicability of Newmark method at regional, sub-regional and site scales: seismically induced Bullas and La Paca rock-slide cases (Murcia, SE Spain). Natural Hazards, 59, 1109-1124. https://doi.org/10.1007/s11069-011-9820-x
Romeo, R. 2000. Seismically induced landslide displacements, a predictive model. Engineering Geology, 58, 337-351. https://doi.org/10.1016/S0013-7952(00)00042-9
Silva, P.G., Goy, J.L., Zazo, C., Lario, J. and Bardají, T. 1997. Paleoseismic indications along 'aseismic' fault segments in the Guadalentín Depression (SE Spain). Journal of Geodynamics, 24(1-4): 105-115. https://doi.org/10.1016/S0264-3707(97)00011-2
Skarlatoudis, A.A., Papazachos, B.N., Margaris, N., Theodulidis, C., Papaioannou, I., Kalogeras, E.M., Scordilis, E.M. and Karakostas, V. 2003. Empirical peak ground-motion predictive relations for shallow earthquakes in Greece. Bulletin of the Seismological Society of America, 93(6), 2591-2603. https://doi.org/10.1785/0120030016
Wieczorek, G.F., Wilson, R.C. and Harp, E.L. 1985. Map showing slope stability during earthquakes in San Mateo County California. U.S. Geological Survey Miscellaneous Investigations Map I-1257-E, escala 1:62500.
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Funding data
Ministerio de Ciencia e Innovación
Grant numbers CGL2009-09726
Universidad Complutense de Madrid
Grant numbers GR35/10-A-910368
