Thursday, 15 October 2015

Volcanos

Roundup of Global Volcanic Activity

Batu Tara (Sunda Islands, Indonesia): VAAC Darwin spotted an ash plume at 7,000 ft (2.1 km) drifting 80 km west from the volcano this morning.

Reports from Batu Tara have become more frequent, recently, suggesting that activity is intense.

Dukono (Halmahera): Ash emissions remain intense. A plume was reported extending 50 nautical miles to the NE from the volcano this morning.

Cleveland (Aleutian Islands, Alaska): Unrest at the volcano has decreased and the Alaska Volcano Observatory lowered the alert level down to Yellow: Strongly elevated surface temperatures have not been observed at Cleveland since August 18. Moderately elevated surface temperatures have been observed with decreasing regularity since then, with the most recent instance occurring on September 30. This indicates lava effusion at the summit has likely ceased. In addition, explosive activity, as detected by infrasound, last occurred over two months ago on August 6. Based on the decline in activity, we are lowering the Level of Concern Colour Code to YELLOW and the Alert Level to ADVISORY.

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