Kammala jumla mai zuwa: Mazaunin Ferndale Joseph Jordan Bognuda (2 ga Oktoba 1889 Vacaville, California - 7 ga Janairu 1979) ya zama mai sha'awar girgizar ƙasa bayan ya rayu ta hanyar
1906 San Francisco wanda ya haifar da mummunar lalacewa a Ferndale da kuma fadin Eel River Valley. Bognuda ya fara rubutu tare da Perry Byerly kuma ya halarci laccoci a Jami'ar California a Berkeley wanda ya haifar da Jami'ar da kuma Amurka Coast da Geodetic Survey kafa Ferndale Seismographic Station tare da haske Bosch-Omori Seismograph fiye da wanda ke aiki a Berkeley a lokaci guda.