I just got three messages in a clump from CalTech/USGS about three earthquakes a few minutes apart near Big Bear Lake in the San Bernardino Mountains. The preliminary magnitudes given for these earthquakes are 5.2, 4.5 and 4.2. An interesting cluster. You can see a map of the region here. These earthquakes are represented by the large squares near the bottom of the map. If you get there within and hour, they will be red. Later, they will be shown in blue. After 24 hours, they will be shown in yellow. So, what are you waiting for? Go look!