Janani Mohan

Smithsonian Institution

Ontakesan (Japan | BGVN 40:03)

This Bulletin report covers activity from November 2003 to November 2014. During this reporting interval, two eruptions occurred, both broadly described as phreatic, yet containing a minor component of identified juvenile magmatic material. 

Nyamuragira (DRC | BGVN 40:01)

This report covers activity from April 2014 to January 2015, during which time there were intervals with lava fountains, high SO2 fluxes, elevated thermal infrared emissions, and high seismicity.

Suwanosejima (Japan | BGVN 39:11)

This report covers activity from 1 April 2013 to 31 December 2014. This reporting period includes continuous tremor, intervals with several explosions per day, and plumes rising up to 5.5 km altitude.

Fogo (Cape Verde | BGVN 39:11)

This Bulletin report covers from June 1995 through February 2015. The interval’s major volcanic event began on 23 November 2014 with the eruption of lavas. Fogo continued erupting through 8 February 2015, when the Observatório Vulcanológico de Cabo Verde (OVCV) stated that the eruption ceased.

Merapi (Indonesia | BGVN 39:10)

This report details activity and monitoring at Merapi from 13 June 2011 through December 2014. During the current reporting interval, Merapi erupted regularly amid elevated seismicity.

Ambang (Indonesia | BGVN 39:09)

This Bulletin report, our first one on Ambang (figure 1), covers activity from 1966 to August 2014. Activity was sporadic, with decades of neither eruptions nor significant seismicity.

Rabaul (Papua New Guinea | BGVN 39:08)

This report describes activity at the Tavurvur cone between January 2014 and the end of September 2014. Excepting the event on 29 August 2014 when Tavurvur sent an ash plume to ~18 km altitude, activity consisted mostly of a few minor explosions and ashfall.

Manam (Papua New Guinea | BGVN 39:08)

Volcanic activity at Manam from January 2011 through May 2013 (BGVN 38:06) consisted of occasional ash plumes and several pyroclastic flows. 

Barren Island (India | BGVN 39:07)

Renewed activity at Barren Island that began in October 2013 continued at least through June 2014. Ongoing low-level eruptive activity was indicated by intermittent reports of ash plumes and MODIS infrared satellite observations.