|(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)|
|(3) Volcano:||Cleveland (VNUM #311240)|
|(4) Current Color Code:||YELLOW|
|(5) Previous Color Code:||ORANGE|
|(6) Source:||Alaska Volcano Observatory|
|(7) Notice Number:|
|(8) Volcano Location:||N 52 deg 49 min W 169 deg 56 min|
|(10) Summit Elevation:||5676 ft (1730 m)|
|(11) Volcanic Activity Summary:||The last detected explosive activity at Cleveland Volcano occurred March 2, 2018. There is no evidence of significant eruptive activity since that time, and a clear satellite view today showed no new lava effusion in the crater. Thus, AVO is lowering the Aviation Color Code to YELLOW and the Volcano Alert Level to ADVISORY.
Future explosive activity is likely, and would likely occur without warning. Explosions from Cleveland typically produce relatively small volcanic ash clouds that dissipate within hours; however, more significant ash emissions are possible.
Cleveland volcano is monitored with a limited real-time seismic network, which inhibits AVO's ability to detect precursory unrest that may lead to an explosive eruption. Rapid detection of an ash-producing eruption may be possible using a combination of seismic, infrasound, lightning, and satellite data.
|(12) Volcanic cloud height:||None|
|(13) Other volcanic cloud information:||n/a|
|(15) Contacts:||Michelle Coombs, Scientist-in-Charge, USGS
firstname.lastname@example.org (907) 786-7497
Pavel Izbekov, Acting Coordinating Scientist, UAFGI
email@example.com (907) 322-4085
|(16) Next Notice:|