Hello Matt- They're regional tectonic earthquakes. We have no indication that these earthquakes have anything to do with volcanism. This series of earthquakes, at this time, is not alarming to us. Thank you, Cheryl -------- Matt Dotseth wrote: Hello, I write a geology blog and would like to know if you would be able to answer a question for me (I'd much rather get this info from the horse's mouth!). My Google Earth/USGS Real Time Quake plugin is showing a lot of quakes ranging from mag 4.5 to lower magnitudes at a shallwo depth between Aniakchak and Yantarni volcanoes in the Aleutian arc. Have you looked into this at all? Given the shallow depth, my understanding is that this could be related to magma dike intrusion. Has AVO or USGS looked at this series of quakes? Is it common for the area? Any info you have is greatly appreciated, you guys do some great work up there! Best, Matt Dotseth -- Cheryl Cameron Geologist, Alaska Volcano Observatory Alaska Division of Geological & Geophysical Surveys voice: 907-451-5012 fax: 907-451-5050