Colima volcano Volcanic Ash Advisory: VA EM OBSD

Tue, 17 Jan 2017, 06:30
06:30 AM |
Volcanic Ash Advisory Center Washington (VAAC) issued the following report:

FVXX23 at 06:29 UTC, 17/01/17 from KNES
VA ADVISORY
DTG: 20170117/0627Z

VAAC: WASHINGTON

VOLCANO: COLIMA
341040
PSN: N1930 W10337

AREA: MEXICO

SUMMIT ELEV: 12631 FT [3850
M]

ADVISORY NR: 2017/083

INFO SOURCE: GOES-EAST. GFS WINDS.
SEISMIC
DETECTION. VOLCANO WEB CAMERA.

ERUPTION DETAILS: VA EM OBSD

OBS
VA DTG: 17/0615Z

OBS VA CLD: SFC/FL170 N2001 W10331 - N1958 W10316
-
N1931 W10335 - N1934 W10338 - N2001 W10331 MOV
NE 20KT

FCST VA CLD
+6HR: 17/1230Z SFC/FL170 NO ASH EXP

FCST VA CLD +12HR: 17/1830Z NO ASH
EXP

FCST VA CLD +18HR: 18/0030Z NO ASH EXP

RMK: T+0 CONFIDENCE IS HIGH.
UPDATED FOR ASH
EXTENT. VA EM SEEN IN STLT IMAGERY MOV NE APPROX
40 NM
AWAY FM THE SUMMIT. ...KIM

NXT ADVISORY: WILL BE ISSUED BY
20170117/1000Z

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Background:

Colima volcano is one of the most active in North America and one of the potentially most dangerous ones. It has had more than 30 periods of eruptions since 1585, including several significant eruptions in the late 1990s. Scientific monitoring of the volcano began 20 years ago. 

The Colima volcanic complex is the most prominent volcanic center of the western Mexican Volcanic Belt.  It consists of two southward-younging volcanoes, Nevado de Colima (the 4320 m high point of the complex) on the north and the 3850-m-high historically active Volcán de Colima at the south. 
A group of cinder cones of probable late-Pleistocene age is located on the floor of the Colima graben west and east of the Colima complex. Volcán de Colima (also known as Volcán Fuego) is a youthful stratovolcano constructed within a 5-km-wide caldera, breached to the south, that has been the source of large debris avalanches.  Major slope failures have occurred repeatedly from both the Nevado and Colima cones, and have produced a thick apron of debris-avalanche deposits on three sides of the complex.  Frequent historical eruptions date back to the 16th century.  Occasional major explosive eruptions (most recently in 1913) have destroyed the summit and left a deep, steep-sided crater that was slowly refilled and then overtopped by lava dome growth.
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Source: GVP, Smithsonian Institute - Colima information
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