Many of the 100 plus aftershocks were very small, but some had been strong enough for people to fell close to the original epicenter in the northwestern section of Orange County.
Officials are surveying damage and have thus far called it minor. Police in Fullerton said early on Saturday that up to 50 people were displaced due to the quake. A number of buildings are being looked at for the possibility of structural damage. Included in those buildings are apartment buildings.
Friday’s quake was centered close to La Habra. It caused pictures to fall from the walls, glass to shatter, furniture to tumble over and products to fall from shelves.
Residents throughout Los Angeles and Orange counties as well as in the Inland Empire said fireplaces dislodged, chandeliers were swinging and furniture was moved.
A Carbon Canyon rockslide caused by the quake overturned a car. Several people received minor injuries. The road leading to Carbon Canyon was closed.
Fullerton officials reported seven breaks in water mains and police were called to reports of shattering glass. However, most residents called about alarms being set off by the shaking.
In Anaheim, at Disneyland, the rides were all stopped out of an abundance of caution however, no injuries or damages had been reported.
The first quake to hit was at 8 pm but was just 3.6 on the Richter scale. That was followed just over an hour later by the largest at 5.1. Two or three more aftershocks in the mid 3s then hit over the next 30 minutes. By late Friday night, over 20 aftershocks were reported and they continued through until early Saturday morning.
One seismologist said the quake that registered 5.1 has a 5% chance that it is a foreshock for one that is even larger.
Experts have said that from the preliminary data gathered, that the series of tremors appeared to have taken place in the thrust fault in Puente Hills, which stretches to downtown Los Angeles from the San Gabriel Valley.