(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) | |
(2) Issued: | (20190225/2030Z) |
(3) Volcano: | Great Sitkin (VNUM #311120) |
(4) Current Color Code: | GREEN |
(5) Previous Color Code: | YELLOW |
(6) Source: | Alaska Volcano Observatory |
(7) Notice Number: | |
(8) Volcano Location: | N 52 deg 4 min W 176 deg 6 min |
(9) Area: | Aleutians |
(10) Summit Elevation: | 5709 ft (1740 m) |
(11) Volcanic Activity Summary: | Earthquake activity at Great Sitkin Volcano has decreased to background levels over the past month. There are no evidence of explosive activity in geophysical data streams or in satellite observations. Thus, AVO is decreasing the Aviation Color Code GREEN and Alert Level to NORMAL. |
(12) Volcanic cloud height: | n/a |
(13) Other volcanic cloud information: | n/a |
(14) Remarks: | |
(15) Contacts: | Michelle Coombs, Scientist-in-Charge, USGS mcoombs@usgs.gov (907) 786-7497 Pavel Izbekov, Acting Coordinating Scientist, UAFGI peizbekov@alaska.edu (907) 322-4085 |
(16) Next Notice: |
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