Aftershocks rumble Southern California after 4.4 earthquake
A series of aftershocks rattled Southern California after two earthquakes — a 4.4-magnitude shaker followed immediately by a 2.7 — struck near Yorba Linda late Tuesday night, but authorities said there were no reports of major damage or injuries.
The first earthquake hit around Yorba Linda at 11:23 p.m.; the second — upgraded from an initial magnitude of 2.2 — followed about a minute later, according to data from the U.S. Geological Survey. About a dozen aftershocks ranging from magnitudes of 1.2 to 2.2 rumbled the same area until about 3 a.m. Wednesday.
The initial quakes prompted alert operations by the Los Angeles Fire Department and Orange County Fire Authority. Neither agency found damage in preliminary checks and lifted their emergency operations after midnight.
The USGS' "Did You Feel It?" feature included responses from as far away as Thousand Oaks and Santa Clarita.
But not everyone noticed.
"I slept through an earthquake! Wow that's a first!" @gabri068 tweeted.
"just learned that there was an earthquake last night.... missed it!" @csherdian wrote.
— Shelby Grad and Kate Mather
Credit: U.S. Geological Survey