--------------------------------------------------------------- The following message was sent to you via AVO Web Email System: --------------------------------------------------------------- Name: Michael Firth Email Address: mjflegend@gmail.com Subject: Age of Herbert's caldera/unidentified eruption ca. 1601 CE Message: Hi, I have today been involved in a discussion on the Volcano Cafe blog about an eruption with an unidentified source that produced a significant sulphur spike that happened around 1601 CE, as a "dual" climate effect with the large eruption of Huaynaputina in Peru in 1600 (similar to the "missing" 1808/09 eruption combined with Tambora). It is believed to have been from the northern hemisphere, with a possible location being in the Aleutians. A suggestion was made that it could have been from the eruption that formed Herbert's caldera, because of its appearance which suggests it was quite recent, and the fact there's no data on its eruptive history. Is it realistically possible that Herbert could potentially be the source of this eruption? ---------------------------------------------------------------- REMOTE IP ADDRESS: 137.229.113.11 USER AGENT/BROWSER: Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.115 Safari/537.36 REFERRING PAGE: https://avo.alaska.edu/contact.php