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Volcanic activity worldwide 16 Apr 2013: Popocatépetl, Dukono, Batu Tara, Paluweh, Nevado del Ruiz,...

Tuesday Apr 16, 2013 18:35 PM |

SO2 plume from Bagana today (NOAA)
SO2 plume from Bagana today (NOAA)
SO2 plume from Dukono (NOAA)
SO2 plume from Dukono (NOAA)
Ash emission from Popocatepétl this morning
Ash emission from Popocatepétl this morning
Today's seismic recording from Nevado del Ruiz (OLL station, INGEOMINAS)
Today's seismic recording from Nevado del Ruiz (OLL station, INGEOMINAS)
Bagana (Bougainville Island, Papua New Guinea): A large SO2 plume was detected from the volcano today, suggesting that elevated activity is occurring.

Manam (Papua New Guinea): Eruptions continue. An ash plume rose to 10,000 ft (3 km) altitude this morning and the Rabaul Volcano Observatory raised the alert level to 3, following a strong increase in seismic activity. The aviation color code is at orange (VAAC Darwin).

Batu Tara (Sunda Islands, Indonesia): An explosion this morning produced an ash plume rising to 7,000 ft (2.1 km) altitude.

Paluweh (off Flores Island, Indonesia): Activity from the lava dome continues, in the form of explosions and rockfalls/pyroclastic flows due to mass loss from the dome. An ash plume was observed this morning rising to 7,000 ft (2.1 km) altitude and drifting 20 nautical miles to the east (VAAC Darwin).

Dukono (Halmahera): Increased SO2 emissions appear on today's NOAA satellite data, suggesting the volcano is in a phase of increased activity.

Popocatépetl (Central Mexico): The volcano remains in a state of elevated activity. Phases of medium to strong tremor occurred this morning at the volcano, although these were not associated by significant changes in the current observed activity: CENAPRED reported near-continuous degassing / steaming, and 35 emissions over the past 24 hours, the strongest of which ejected incandescent fragments out of the crater and produced small ash plumes rising up to 1.5 km height above the crater.
Moderate glow from the growing lava dome remains visible at night.

Nevado del Ruiz (Colombia): An eruption is underway at the volcano. The seismic swarm has continued and is increasing, with quakes as large as magnitude 3.2 this morning. The hypocenters of the seismic swarm, caused by intruding magma, is at 5-9 km depth 6 km NW below the Arenas craters.
INGEOMINAS reports ongoing strong degassing and ash venting. A modest SO2 anomaly is visible on the latest (yesterday's) NOAA satellite data, which confirms fresh magma rising below the volcano.
Previous news
Current seismic signal from White Island (GeoNet)
Monday, Apr 15, 2013
Bagana (Bougainville Island, Papua New Guinea): Activity at the volcano continues. A volcanic ash plume was observed at 6,000 ft (1.8 km) altitude and extending 15 nautical miles to the S and W. ... [more]
Newberry earthquakes, 2011 - 2013 Map showing earthquakes located within the Newberry caldera from 2011 - 2013. Earthquakes from April 08-12, 2013, are colored orange or red (for April 12 events) (map: USGS)
Sunday, Apr 14, 2013
Newberry (Oregon): A cluster of earthquakes has occurred during the past days under the caldera. USGS reports: ... [more]
Strombolian eruption from NW crater today (INGV thermal webcam)
Sunday, Apr 14, 2013
Stromboli (Eolian Islands, Italy): Activity has remained more or less unchanged. Explosions, sometimes strong continue from several vents,and small amounts of viscous lava overspills the rims of the NE crater. ... [more]
Webcam image of the New SE crataer with the suspected new vent (bluish degassing) at its base
Saturday, Apr 13, 2013
Etna (Sicily, Italy): Following yesterday's paroxysm, it seems that a new effusive vent has opened at the SE base of the New SE crater. ... [more]
Thermal webcam image of the crater area of Stromboli with an eruption from the NW vent (INGV)
Friday, Apr 12, 2013
Stromboli (Eolian Islands, Italy): Activity remains elevated. Lava continues to overspill from the lips of the NE crater, showing that the magma column stands high inside the conduit. Frequent strombolian explosions are reaching heights of 2-300 m and the tremor signal is strong again today. ... [more]

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