Two earthquakes hit San Francisco six hours apart from one another on Thursday night.
The last earthquake was a 3.9 magnitude and occurred at 8:16 p.m. Six hours prior, another earthquake shook the city at 2:41 p.m. with a 4.0 magnitude, according to the U.S. Geological Survey.
The natural disaster coincidentally occurred on a significant day for various reasons. During the 1989 World Series, a 6.9 magnitude earthquake struck the Bay area on almost the same day as the present natural disaster.
On that day 22 years ago, 63 people were killed, 3,800 injured and $10 billion dollars spent attempting to repair damages. However, experts were prepared for the natural disasters in 2011, which also made Thursday notable.
The two quakes took place on California’s annual earthquake preparedness drill, according to Time.com. Over 8 million people signed up to participate in the event, named the 2011 Great California Shakeout.
The two events also shared the day with another uncommon moment, the eve of Harold Camping’s predicted end of the world. After a costly campaign to convince people that the world would end five months ago, Camping has been emphasizing the Oct. 21 on his radio show in Oakland, Calif.
After months of speculation, Campings’ spokesman, Tom Evans, spoke about what they believed will take place.
"We don't know how He [God] will bring about the end... we don't know physically what that will look like, how it will take place," Evans recently told supports at the Family Radio meeting in Oakland.
Evans spoke last Sunday more about the significance of the date.
"So now, here we are. The 10,000-pound elephant sitting right in the room,” Evans said. “In less than five days from today, we'll know whether we were right or wrong. Whether we understood the Scriptures correctly, whether the Spirit of God directed us, or whether we were deceived. That's a big question."