I heard about this and it looks like the Pacific plates are restless. Some of them were above 7. The ones I heard about were all above 6. I remember one in California that was a 6.5 I believe. Only one person was killed when an overpass fell on him.
The new VA hospital in LA collapsed but no one was in it yet. Turned out the construction company used too much sand in the concrete. You should have heard the screams. Everyone was saying that's what happens when you go with the lowest bidder and don't check on the in progress building.
In the past week large earthquakes in Japan, Philipines, Vanuatu, Tonga, and Ecuador. All around the pacific basin area. Is it working it's way toward the Big One in California? If some 7+ richter scale earthquakes happen near Kamchatkya and Alaska, I'd be plenty worried if I lived in California.