At 7:14 a.m., a 4.0 magnitude earthquake shook near Loma Linda, CA, about 58 miles east of Downtown Los Angeles. "Viewers called in to say they felt the shaker, but there were no reports of damage or injuries," according to KNBC. Shortly before at 6:49 and 7:05 a.m., two 2.6 microquakes rattled the same area. On Friday, the Great Southern California ShakeOut, which will include the largest earthquake drill ever in November, launched a blog. It's not a matter if there will be a massive earthquake, but when it will strike.