... bathymetric and seismic reflection data for the Chilean continental margin between 36.5 and 39.0°S to: (1) describe the three giant slope failures offshore Arauco Peninsula; (2) provide age estimates for these slides; (3) compare the size of the three slope failures with other slides reported from active...

... Concepción earthquake, applying a Bayesian approach that considers uncertainties in the data. Our results show that the M w 8.1 Concepción earthquake ruptured a deep segment of the megathrust, concentrated in a compact zone below the Arauco peninsula between depths of 20 and 50 km. Tsunami generation from...

... and subsidence along about 470 km of the central Chilean coast. In the south, deformation included as much as 3 m of uplift of the Arauco Peninsula, which produced emergent marine platforms and affected harbor infrastructure. In the central part of the deformation zone, north of Constitución, coastal subsidence...

... and waterside facilities useless; a large expanse of new beach was exposed. Rio Lebu is no longer navigable because of the uplift. Details of tsunami are reported for several towns on the Arauco Peninsula and south to Tolten. 06 2 1963 Copyright © 1963, by the Seismological Society of America...

... ). VP and AP stand for Valparaíso Peninsula and Arauco Peninsula, respectively. Thick black arrow shows the convergence orientation. The Santa María island referred in the text is located in the gulf between AP and the city of Concepción. (B) Map of the O’Higgins study region showing geologic units...

...) and detailed study by Nelson and Manley (1992) reported Holocene uplift rates between 5.5 and 10 m/k.y. at Mocha Island (Fig. 1A) , based on 14 C ages of emerged strandlines. Marine terraces of the Arauco Peninsula and surroundings were described by Kaizuka et al. (1973) as three sequences of uplifted...

.... Bookhagen B. Strecker M.R. Echtler H.P. , 2009 , Segmentation of megathrust rupture zones from fore-arc deformation patterns over hundreds to millions of years, Arauco peninsula, Chile : Journal of Geophysical Research , v. 114 , no. B1 , B01407 , doi:10.1029/2008JB005788 . Melnick...

... Santa María Island, was neither described nor illustrated for comparison. Tavera added that Solemya ? antarctica is also present in the Eocene of Arauco Peninsula (Tavera, 1979 , p. 76). A sample in the Tavera collection at MNHNcl is labelled as Solenomya sp. (SGO.PI.19079) coming from Docas...

... of Strombus without any spines or axial sculpture. Hemichenopus araucanus ( Philippi, 1887 ) from the ?Eocene of Peninsula Arauco shows strong affinities to Dicroloma zelandica Marshall, 1919 from the Eocene of New Zealand, which is here assigned to Hemichenopus . The New Zealand species Perissoptera...

... seismograms will be computed, and solid triangles indicate the towns and cities where ground motions were measured (see  Data and Resources ). The largest predicted uplifts are in the Arauco Peninsula and reach 1.8 m near LBU, while subsidence reached 1.76 m near the CRC and TLC stations, which is consistent...

... partially saturated, which seems to be consistent with the observed conditions and the most likely explanation for the relatively small number of slope failures caused by the earthquake. Nevertheless, significant slope failures occurred on the Arauco Peninsula following a relatively straight line ( Figure...

... damage of its own. Concepci6n is located about 200 km from the presumptive epicenter of the main shock, but is included in the foreshock-aftershock area. Well-documented instances of geodetic displacement occurred about 100 km southwest of ConcepciSn. The city is recessed behind the Arauco Peninsula...

...) barrier. The Mejillones, the Topocalma, the Arauco peninsulas (Chile), as well as EW-striking reverse fault scarps in the Coastal Cordillera ( Fig. 4C ), formed by trench-parallel shortening, may bound the earthquake rupture extents ( Allmendinger et al., 2005 ; Melnick et al., 2009 ; Victor et al...

... sediments (Fig. DR1 1 ) ( Illies, 1967 ; Muñoz et al., 2000 ; Jordan et al., 2001 ). The oldest forearc-related sedimentary units south of the Arauco Peninsula are the Eocene San Pedro and Pupunahue Formations, which are characterized by ∼1000-m-thick sandstones with interbedded conglomerates, shales...

... , Segmentation of megathrust rupture zones from fore arc deformation patterns over hundreds to millions of years, Arauco peninsula, Chile : Journal of Geophysical Research , v. 114 , B01407 , doi:10.1029/2008JB005788 . Moore J.C. Saffer D. , 2001 , Updip limit of the seismogenic zone beneath...