Premise: A 3.5-magnitude earthquake struck less than four miles southeast of Ontario at 4:08 a.m. Tuesday, July 10, according to the U.S. Geological Survey. The rattler was felt as far as San Bernardino and Temecula, according to the USGS Did You Feel It Map. As of 5 a.m., there were no reports of damage or injuries.
Hypothesis: 1000 people felt the earthquake in Ontario.