On March 10, 1933, a magnitude 6.4 earthquake in the city of Long Beach completely destroyed the infrastructure of the six buildings which composed the Jefferson High School Campus. The campus was closed from March 10 until April 6 while the school board assessed the situation. On April 6, tent bungalows provided by the school board were erected on the football fields. Classes were shortened to half day sessions in order to serve the entire student population.