FN Archimer Export Format
PT J
TI Holocene turbidites record earthquake supercycles at a slow-rate plate boundary
BT 
AF RATZOV, Gueorgui
   CATTANEO, Antonio
   BABONNEAU, Nathalie
   DEVERCHERE, Jacques
   YELLES, Karim
   BRACENE, Rabah
   COURBOULEX, Francoise
AS 1:1,2;2:2;3:1;4:1;5:3;6:4;7:5;
FF 1:PDG-REM-GM-LES;2:PDG-REM-GM-LES;3:;4:;5:;6:;7:;
C1 Univ Brest, IUEM, CNRS UMR 6538, Domaines Ocean, F-29280 Plouzane, France.
   IFREMER, Geosci Marines EDROME, F-29280 Plouzane, France.
   Ctr Rech Astron Astrophys & Geophys, Algiers 16006, Algeria.
   SONATRACH Explorat, Boumerdes 35000, Algeria.
   Univ Nice Sophia Antipolis, CNRS, IRD, Observ Cote Azur,Geoazur UMR 7329, F-06560 Valbonne, France.
C2 UBO, FRANCE
   IFREMER, FRANCE
   CRAAG, ALGERIA
   SONATRACH, ALGERIA
   UNIV NICE, FRANCE
SI BREST
SE PDG-REM-GM-LES
UM LGO
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
   copubli-int-hors-europe
   copubli-sud
IF 4.548
TC 33
UR https://archimer.ifremer.fr/doc/00254/36558/35105.pdf
LA English
DT Article
CR MARADJA
   PRISME
BO Le Suroît
   L'Atalante
AB Ongoing evidence for earthquake clustering calls for records of numerous earthquake cycles to improve seismic hazard assessment, especially where recurrence times overstep historical records. We show that most turbidites emplaced at the Africa-Eurasia plate boundary off west Algeria over the past ∼8 k.y. correlate across sites fed by independent sedimentary sources, requiring a regional trigger. Correlation with paleoseismic data inland and ground motion predictions support that M ∼7 earthquakes have triggered the turbidites. The bimodal distribution of paleo-events supports the concepts of earthquake supercycles and rupture synchronization between nearby faults: 13 paleo-earthquakes underpin clusters of 3–6 events with recurrence intervals of ∼300–600 yr, separated by periods of quiescence of ∼1.6 k.y. without major events on other faults over the study area. This implies broad phases of strain loading alternating with phases of strain release. Our results suggest that fault slip rates are time dependent and call for revising conventional seismic hazard models.
PY 2015
PD APR
SO Geology
SN 0091-7613
PU Geological Soc Amer, Inc
VL 43
IS 4
UT 000352097900020
BP 331
EP 334
DI 10.1130/G36170.1
ID 36558
ER

EF