Within a half-hour of the quake, nearly 20,000 area residents logged onto the United States Geological Survey website to complete surveys describing the strength of the earthquake at their location, which compiles the Internet Intensity Map for the quake.
Although the quake was felt as far away as Nevada, Arizona, and Utah, there were no significant reports of damage. There were 37 aftershocks, the largest registering magnitude 2.8, within just 30 minutes of the quake. This earthquake increased the risk of a major earthquake in the area over the coming week (there is a 5-10% chance of an earthquake equal to or larger than this mainshock in the next 7 days.) Learn more about California earthquakes here on my site.