@article{fdi:010086457, title = {{D}istribution of active tectonics in the {H}imalayan piedmont ({D}arjeeling, eastern {I}ndia) inferred from {H}orizontal-to-{V}ertical spectral ratio analysis of passive seismic records}, author = {{L}arge, {E}. and {H}uyghe, {P}. and {M}ugnier, {J}. {L}. and {G}uillier, {B}ertrand and {T}aral, {S}. and {G}yawali, {B}. {R}. and {C}habraborty, {T}.}, editor = {}, language = {{ENG}}, abstract = {{T}he pattern of active deformation of frontal structures in {D}arjeeling {H}imalaya is complex with out-of-sequence reactivations in the chain and development of scarps associated with earthquake ruptures reaching the surface in the piedmont. {T}o clarify the distribution of active deformation in this area, we analyse passive seismic records by the {H}orizontal-to-{V}ertical {S}pectral {R}atio method along three {NS} trending profiles. {W}e image the {S}iwalik sedimentary rocks / recent deposits interface under the piedmont and show folded and faulted geometries. {T}wo of these faults are located under scarps of about 10 m affecting the 3.7 +/- 0.7 ka old surface of the {T}ista megafan. {S}uch features imply that about half of the convergence is expressed south of the {H}imalayan front while the other part occurs out-of-sequence in the chain, suggesting a very limited activity of the {M}ain {F}rontal {T}hrust itself.}, keywords = {{INDE} ; {BENGAL} {WEST} ; {HIMALAYA}}, booktitle = {}, journal = {{T}erra {N}ova}, volume = {34}, numero = {6}, pages = {535--542}, ISSN = {0954-4879}, year = {2022}, DOI = {10.1111/ter.12619}, URL = {https://www.documentation.ird.fr/hor/fdi:010086457}, }