@article{fdi:010076708, title = {{S}ources of long-range anthropogenic noise in {S}outhern {C}alifornia and implications for tectonic tremor detection}, author = {{I}nbal, {A}. and {C}ristea-{P}laton, {T}. and {A}mpuero, {J}ean-{P}aul and {H}illers, {G}. and {A}gnew, {D}. and {H}ough, {S}.{E}.}, editor = {}, language = {{ENG}}, abstract = {{W}e study anthropogenic noise sources seen on seismic recordings along the central section of the {S}an {J}acinto fault near {A}nza, southern {C}alifornia. {T}he strongest signals are caused by freight trains passing through the {C}oachella {V}alley north of {A}nza. {T}rain-induced transients are observed at distances of up to 50 km from the railway, with durations of up to 20 min, and spectra that are peaked between 3 and 5 {H}z. {A}dditionally, truck traffic through the {C}oachella {V}alley generates a sustained hum with a similar spectral signature as the train transients but with lower amplitude. {W}e also find that wind turbine activity in northern {B}aja {C}alifornia introduces a seasonal modulation of 1- to 5-{H}z energy across the {A}nza network. {W}e show that the observed train-generated transients can be used to constrain shallow attenuation structure at {A}nza. {U}sing the results from this study as well as available borehole data, we further evaluate the performance of approaches that have been used to detect nonvolcanic tremor at {A}nza. {W}e conclude that signals previously identified as spontaneous tremor ({H}utchison and {G}hosh, 2017) were probably generated by other nontectonic sources such as trains.}, keywords = {{ETATS} {UNIS}}, booktitle = {}, journal = {{B}ulletin of the {S}eismological {S}ociety of {A}merica}, volume = {108}, numero = {6}, pages = {3511--3527}, ISSN = {0037-1106}, year = {2018}, DOI = {10.1785/0120180130}, URL = {https://www.documentation.ird.fr/hor/fdi:010076708}, }