--------------------------------------------------------------- The following message was sent to you via AVO Web Email System: --------------------------------------------------------------- Name: steve bradshaw Email Address: bradshawsteve520@gmail.com Subject: webicoders Message: Question on webicorder for Westdahl volcano. I used type WESE EHZ AV. At utc 0530 and 0600 on 8-26 there are 2 vertical lines which can be seen fairly clearly. Are these movement inside the volcano or outer noise? The lines seem thin and vertical and do not look like earthquakes which seem to have horizontal thickness like you say in your FAQs showing s and p waves. Trying to figure out what internal volcanic movement looks like and would appreciate your response. Sincerely, Steve Bradshaw ---------------------------------------------------------------- REMOTE IP ADDRESS: 72.192.113.176 USER AGENT/BROWSER: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.140 Safari/537.36 Edge/17.17134 REFERRING PAGE: https://www.avo.alaska.edu/contact.php