Mezue ahịrịokwu na-esonụ: Onye bi na Ferndale Joseph Jordan Bognuda (Ọktoba 2, 1889 Vacaville, California - Jenụwarị 7, 1979) nwere mmasị na ala ọma jijiji mgbe ọ bi na
1906 San Francisco nke kpatara nnukwu mmebi na Ferndale na n'akụkụ Osimiri Eel niile. Bognuda malitere akwụkwọ ozi na Perry Byerly ma gaa nkuzi na Mahadum California na Berkeley nke mere ka Mahadum na US Coast na Geodetic Survey guzobe Ferndale Seismographic Station na Bosch-Omori Seismograph dị mfe karịa nke na-arụsi ọrụ ike na Berkeley n'otu oge ahụ.