TY - RPRT TI - Global primary and secondary microseism multi-decade geographic variation, secular intensification, and period lengthening AU - Rick Aster AU - Thomas A. Lee AU - Frederik Simons AU - Adam T. Ringler AU - Robert E. Anthony PY - 2026 DO - 10.1029/2025jb032422 UR - https://pubs.usgs.gov/publication/70277160 ID - 70277160 ER -