Volcano Discovery Saturday Oct 05, 2013 11:03 AM
The Húsavík-Flatey (HFF) transform faut and location of earthquakes in the TFZ (IMO)
Minor ash venting from Copahue yesterday
Tjörnes Fracture Zone (North of Iceland): The earthquake swarm has decreased in intensity. At least some scientists believe that the cause has been a magmatic intrusion in Iceland's northern rift zone that activated the Húsavík-Flatey (HFF) transform fault at the southern limit of the TFZ where the earthquakes were concentrated.
Batu Tara (Sunda Islands, Indonesia): Ash explosions regularly produce plumes up to about 7,000 ft (2.1 km) altitude, such as this morning. Activity (strombolian-type) on the remote island remains strong.
Dukono (Halmahera): An eruption produced an ash plume observed on satellite data. Estimated altitude was 6,000 ft (1.8 km). (VAAC Darwin)
Copahue (Chile/Argentina): The volcano is emitting a weak plume of gas and steam. Minor ash venting could be observed yesterday evening. No glow was visible on night-time webcam images. SERNAGEOMIN has not posted new activity reports.
