Hi Stan - The webicorders update about every 10 minutes. However, when stations are out (this time of year, usually due to lack of power- the batteries have died and the solar panels aren't giving enough juice yet), they of course don't work. Thanks, cheryl -------- Stan Malbon wrote: I would like to know how often webcorders,update on line Thank you Stan -- Cheryl Cameron Geologist, Alaska Volcano Observatory Alaska Division of Geological & Geophysical Surveys voice: 907-451-5012 fax: 907-451-5050