Eastern Strait of Juan de Fuca region Juan de Fuca Atlas Digital geological and geophysical atlas of the neotectonics of the Eastern Juan de Fuca Strait; data set includes relief map, regional geology, seismicity, gravity and magnetics, tomography, quaternary geology, and neotectonics; cooperative project with Canadian Geological Survey Pacific Science Center Active Tectonics of the Devils Mountain Fault and Related Structures, Northern Puget Lowland and Eastern Strait of Juan de Fuca Region, Pacific Northwest Map showing depth to base of uppermost Pliocene(?) to Pleistocene strata based on outcrops and interpretation of seismic-reflection data, eastern Strait of Juan de Fuca region High-resolution seismic-reflection profile crossing the Devils Mountain fault.  [from the Professional Paper] Marine seismic-reflection surveys, aeromagnetic mapping, coastal exposures of Pleistocene strata, and lithologic logs of water wells provide important information for assessing the active tectonics of the northern Puget Lowland and eastern Strait of Juan de Fuca region of the Pacific Northwest. These data indicate that the Devils Mountain fault and the newly recognized Strawberry Point and Utsalady Point faults are active structures and represent potential earthquake sources.