For all its destructiveness, volcanic activity makes for fertile
soil-and dilemmas. Attracted by the ability to grow good crops, along
with the cooler temperatures that come with higher altitude, people
often risk volcano hazards. Residents near Santa Ana proved no
exception; many of the evacuees from the October 1 Santa Ana eruption
had cultivated coffee beans in the region. The human presence in the
area can be seen in the city of Santa Ana, the silver sprawl in the
upper left corner of the image.

http://earthobservatory.nasa.gov/New...3?img_id=17054

Warning: The colour is not true. The vegetation is portrayed as red

There is a fair bit for weather buffs on the newsletter this week:
http://earthobservatory.nasa.gov/Newsroom/