Adegbohungbe was a pupil at the Methodist Girls High School, Yaba, Lagos[2] before going on to receive her undergraduate degree in physics from the University College of Ghana circa 1961.
[6] Spelling out Nigerian government policy that the key to greater food supply was increased overall national wealth, she pointed to Nigeria’s mineral resources as a means to generate the necessary industrialisation.
[10] Her first on geophysical publication as a graduate student in 1967 was under her birth name Adegbohungbe and concerned a two‐component proton precession magnetometer specifically to be used in the equatorial zone, i.e. in the African regions including Nigeria.
These ranged from theoretical modelling techniques[11][12] then more empirical work in 1973-76, producing six articles in collaboration with fellow University of Ibadan physicist, Alfred Olu Agunloye.
[21][22][23] By 1974 she was a Senior Lecturer in Physics at the University of Ibadan, and in the year Oni visited the United States to undertake research with the National Geophysical and Solar-Terrestrial Data Center.
However, one report in January 2020 indicated that "The National Committee on Earthquake set up by Professor Ebun Oni (1997) is moribund due to lack of funds to continue the project.