Soufriére Hills, Montserrat, West Indies

MVO reported that activity at Soufrière Hills decreased slightly during 17-23 May. On 23 May, several pulses of ash venting from Gages vent to the W produced ash plumes to an altitude of approximately 1.8 km (5,900 ft) a.s.l. and drifted E.

Based on pilot reports, information from MVO, and observations of satellite imagery, the Washington VAAC reported that during 23-27 May steam plumes with small amounts of ash or possible ash rose to altitudes of 1.2-1.4 km (4,000-4,500 ft) a.s.l. and drifted W and NW.

Sources: Montserrat Volcano Observatory (MVO), Washington Volcanic Ash Advisory Center (VAAC) – “Reports provided courtesy of the Smithsonian’s Global Volcanism Program and the US Geological Survey’s Volcano Hazards Program.”

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