Technician checking seismometer.
Seismological Digital Station, technician checking S-13 Weak Motion seismometer in underground vault, operated by University of Nevada in Reno, Sierra Nevada Mountains, El Dorado County, California, USA, North America, MR 295
Size: 3473px × 5216px
Location: El Dorado County, California, USA, North America
Photo credit: © inga spence / Alamy / Afripics
License: Licensed
Model Released: Yes
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