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.
A siren went off when the earthquake struck so that people could run for safety.
( z1 go-off :ARG1 ( z2 siren ) :time ( z3 strike :ARG2 ( z4 earthquake ) ) :purpose ( z5 possible :ARG1 ( z6 run :ARG0 ( z7 person ) :purpose ( z8 safe :ARG1 z7 ) ) ) )