Don in Hollister forwarded this article to me. Thought some of you would be interested. The effects were really a bit larger than identified here since most of these areas have had an Ml>3 earthquake as well as a swarm since the Alaska earthquake. This is a bit unusual at this time since earthquakes of Ml>3 in Yellowstone and Mammoth Lakes are relatively rare at this point in time. There was also a Ml 2.5 near Mt. St. Helen's, the largest in that region in more than a year, and a swarm today in the region south of Calexico where the heat flow is quite high. The paradigm before Lander was that earthquakes could not affect seismicity more than a couple of fault lengths away. Then Lander showed that such triggering could occur about 1000 km away. The Alaska quake will extend that by at least 3 times. So how far is too far, or is the far-field aftershock map actually worth something after all?

• Article on long-range effects of Alaska earthquake