Volcano activity of November 14, 2012 - Long Valley Caldera, Popocatepetl, San Cristobal, Tongariro, White Island, Langila, Ambrym and Nyiragongo

This (almost) daily post intends to follow up the activity changes of volcanoes all over the world.
This post is written by geologist Richard Wilson who specializes in Volcano seismicity and Armand Vervaeck. Please feel free to tell us about new or changed activity if we haven't written about it. -

November 14, 2012 volcano activity

A small uptick in earthquakes (<M2.0) in the South Moat of Long Valley Caldera (CA) this morning. (station MMX1)
Popocatepetl volcano (Mexico) is clearly ramping-up in its activity since the weekend.  CENAPRED reports nearly 200 exhalations of gas and ash yesterday and the Popo seismogram is showing increased local seismicity as well (ignore upper part of record as the repeating pattern, though it is volcanic tremor, is produced by software problems).

Popocatepetl this morning - image courtesy Cenapred Mexico

Banded tremor appearing periodically on San Cristobal (Nicaragua) seismograms. (station CRIN)  Small volcanic earthquakes, along with the regular pulses of tremor continue affect nearby Telica volcano. (station TELN)
Small earthquakes still shake both Ruapehu and Tongariro volcanoes (New Zealand), while continuous volcanic tremor rattles White Island volcano.
Recent satellite imagery shows new activity at a few volcanoes today.  Small (thus far) SO2-rich plumes are apparent over Mount Etna (IT) and Langila volcano (Papua New Guinea).  It is possible that the latter plume may have drifted-in from Manam volcano (or another nearby volcano), so I will be scouring sources (Volcanolive.com) for a ground report of activity at Langila.  Elsewhere, small SO2 enriched plumes hover over Nevado Del Ruiz (Colombia), Ambrym (Vanuatu)  and Nyiragongo (DRC) volcanoes.