People United States of America Harry O. Wood peoplepill id: harry-o-woodHOW 7 views today 13 views this weekAmerican seismologistHarry O. WoodBiographyBibliography (1)ListsAlso ViewedThe worksBooksSources:Openlibrary1917On cyclical variations in eruption at KilaueaAuthors:Harry O. WoodFrom our partnersSponsoredHarry O. Wood