Paricutin
eklemetti | October 23, 2009I finally remembered to bring my GSA notes with me to the office, so I can finally post a wrap up of what I saw/heard at the big 2009 meeting in Portland. I'll have a specific post on Kasatochi - too much to say here. However, a great time was had by all!
The crater of Collier Cone in Oregon. The scoria cone likely experienced years of explosive strombolian eruptions when it formed.
Some interesting volcano-related notes:
Clive Oppenheimer pointed out that the Toba eruption 74,000 years ago covered >1% of the Earth's surface with >10 cm (~4 in) ash. To put that in perspective, the Earth…
eklemetti | May 14, 2009The Harrat Khaybar volcanic field in Saudi Arabia. Image courtesy of NASA, taken in 2008.
Now, I might take this report with a Volvo-sized grain of salt, but I've seen a few reports lately of an earthquake swarm going on in Saudi Arabia, near the Harrat Ash-Shaqqah in Al-Eis region (apparently near Madina, but I'm not 100% sure). I might normally just chalk this up to the tectonics of the Arabian Plate, however, the latest article I read this morning, Saleh Al-Muhawis, Director General of the Civil Defense in Madina Region mentioned this as the cause of the seismicity:
... magma (molten rocks…