(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) | |
(2) Issued: | (20201216/0059Z) |
(3) Volcano: | Makushin (VNUM #311310) |
(4) Current Color Code: | GREEN |
(5) Previous Color Code: | GREEN |
(6) Source: | Alaska Volcano Observatory |
(7) Notice Number: | 2020/A1284 |
(8) Volcano Location: | N 53 deg 53 min W 166 deg 55 min |
(9) Area: | Aleutians |
(10) Summit Elevation: | 5906 ft (1800 m) |
(11) Volcanic Activity Summary: | The previous Aviation Color Code and the Volcano Alert Level change was a false alarm. Activity at Makushin Volcano remains at background levels, thus the Aviation Color Code and the Volcano Alert Level are being decreased to GREEN/NORMAL. |
(12) Volcanic cloud height: | n/a |
(13) Other volcanic cloud information: | n/a |
(14) Remarks: | Makushin volcano is located on northern Unalaska Island in the eastern Aleutian Islands. Makushin is a broad, ice-capped stratovolcano which rises to an elevation of 6680 feet. The summit caldera, 3 km diameter, is the site of frequent steam and minor ash eruptions; however, no large eruptions have occurred in this century. The community of Unalaska and port of Dutch Harbor are located 25 km (16 miles) east of Makushin volcano. |
(15) Contacts: | Matt Haney, Acting Scientist-in-Charge, USGS mhaney@usgs.gov (907) 786-7497 Jessica Larsen, Acting Coordinating Scientist, UAFGI jflarsen@alaska.edu (907) 322-4085 |
(16) Next Notice: |