Colima volcano Volcanic Ash Advisory: ERUPTION AT 15/1625Z

Sun, 15 Jan 2017, 17:30
17:30 PM |
Volcanic Ash Advisory Center Washington (VAAC) issued the following report:

FVXX21 at 17:16 UTC, 15/01/17 from KNES
VA ADVISORY
DTG: 20170115/1713Z

VAAC: WASHINGTON

VOLCANO: COLIMA 341040
PSN: N1930 W10337

AREA: MEXICO

SUMMIT ELEV: 12631 FT [3850 M]

ADVISORY NR: 2017/077

INFO SOURCE: GOES-EAST. MEXICO CITY MWO.
RADIOSONDE. GFS WINDS. VOLCANO WEB CAMERA.

ERUPTION DETAILS: ERUPTION AT 15/1625Z

OBS VA DTG: 15/1645Z

OBS VA CLD: SFC/FL150 N1935 W10333 - N1930 W10328
- N1929 W10337 - N1930 W10338 - N1935 W10333 MOV
NE 15KT FL150/180 N1937 W10340 - N1936 W10332 -
N1929 W10336 - N1929 W10339 - N1937 W10340 MOV N
20KT

FCST VA CLD +6HR: 15/2300Z SFC/FL150 N1940 W10313
- N1932 W10303 - N1928 W10328 - N1934 W10333 -
N1940 W10313 FL150/180 N1952 W10339 - N1949
W10322 - N1938 W10320 - N1934 W10331 - N1937
W10340 - N1952 W10339

FCST VA CLD +12HR: 16/0500Z SFC/FL150 NO ASH
EXP FL150/180 NO ASH EXP

FCST VA CLD +18HR: 16/1100Z NO ASH EXP NO ASH EXP

RMK: T+0 CONFIDENCE HIGH. DISCRETE BUT FREQUENT
ASH EMISSIONS OBSERVED IN WEBCAM AND IN STLT
IMAGERY. VA MVG N BETWEEN FL180 AND FL150. BELOW
FL150 VA IS MVG NE AND E. ...RAMIREZ

NXT ADVISORY: WILL BE ISSUED BY 20170115/2315Z

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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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