It's a weird one, this. The original message seemed to be trying to stir up fear about tsunami in Scotland, of all places...
THIS IS AN OFFICIAL WARNING!
A huge 300 ft. high ocean wave is moving towards Scotland.
Edinburgh and many other cities are in a real danger.
Approximate wave moving speed is 700 km/h.
Please read more about this catastrophe here: www.tsunamidanger.com
Earthlink host the websites tsunamidanger.com and danger-tsunami.com, which appear to be a ripoff of a Canadian government site. USENET groups also show signs of this being targetted at the Japanese and Australians.
Weird, or what? Possibly the site has a more malicious intent, exploiting an IE security hole, but I'm wasn't about to try opening it in an unpatched IE to find out ;-)
Anyway, the reply I got from Earthlink last night said:
The customer/account that was used in this spam has been identified and the account was secured.