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Volcanic activity worldwide 30 May 2013: Santa María / Santiaguito, Pacaya, Fuego, Popocatépetl, S...

Thursday May 30, 2013 13:48 PM |

Current seismic recording from Popocatépetl
Current seismic recording from Popocatépetl
Today's seismic recording from Pacaya (PCG station, INSIVUMEH)
Today's seismic recording from Pacaya (PCG station, INSIVUMEH)
Current seismic signal from Fuego volcano (FG3 station, INSIVUMEH)
Current seismic signal from Fuego volcano (FG3 station, INSIVUMEH)
Hazard map of Copahue and threatened villages (graphics created by El Mercurio newspaper)
Hazard map of Copahue and threatened villages (graphics created by El Mercurio newspaper)
Chirinkotan (Northern Kuriles): Based on satellite imagery, the volcanic activity (evidenced by a significant degassing plume) was no longer visible after 25 May and has probably ended or is pausing at the moment.
Analysis of past images in return showed that the eruption likely began in early April already.

Sakurajima (Kyushu, Japan): After a few days of relatively calmness, the volcano erupted at least 3 times today already. It seems to have begun another cycle of increased explosion frequency, which seem typically to last a few days.

Popocatépetl (Central Mexico): An earthquake swarm and tremor pulses occurred today, which could suggest new magma on the rise, but this has (not yet) resulted in particular surface activity which remained rather calm. Degassing (SO2 emissions) remains strong.

Santa María / Santiaguito (Guatemala): Activity has remained generally low, with occasional small to medium-sized ash explosions and small avalanches from the Caliente dome.

Pacaya (Guatemala): The volcano has been mostly hidden in clouds, but strombolian (and perhaps effusive) activity continues as can be seen from glow at night and noises from explosions and degassing. A strong increase of seismic activity seems to have started a few hours ago as suggested by the current seismogram.

Fuego (Guatemala): Activity remains weak. As it's rainy season, the volcano is mostly in clouds, but the seismogram and INSIVUMEH reports indicate occasional small explosions, some rockfalls and degassing events.

Copahue (Chile/Argentina): The seismic crisis continues, but has decreased in intensity. An eruption in the near future still remains a likely scenario, SERNAGEOMIN scientists emphazise, as this decrease in energy could be temporary. It is impossible to predict whether this is a question of days or weeks, or even if an eruption actually will occur.
At the same time, authorities (ONEMI) intensify their preventive measures and reported that 316 people have now been evacuated. It is estimated that more than 2,200 people live in the areas most at thread (Barco, Bultalelbún, Trapa Trapa, Guallalí).
... [read more]
Vorig nieuws
Steam and ash plume from Yasur on 8 May 2013 and hazard map of Yasur volcano and explanation of status levels (Geohazards)
Wednesday, May 29, 2013
Tolbachik (Kamchatka): Eruptive activity continues, with fluid lava flows from the southern fissure being still emitted. However, also a very slow trend of decreasing tremor is visible. ... [meer...]

Tuesday, May 28, 2013
Popocatépetl (Central Mexico): An explosion early today at 05:03 h (local time) ejected incandescent fragments to 1.5 km distance from the crater on the northeastern slope and generated a column of ash that reached more than 2 km height above the crater and was dispersed to the SW. ... [meer...]
Seismic recording from Telica this morning (TELN station, INETER)
Monday, May 27, 2013
Gamkonora (Halmahera): Increased earthquake activity has triggered an eruption alert by VSI, who raised the volcano's status to 3 ("Siaga", "warning") out of 4 this morning. Indonesian volcanologists reported that the degassing plume from the summit crater of the volcano has turned dark, which suggests the presence of ash (probably phreatic in origin) since 25 May. ... [meer...]
Sunday, May 26, 2013
Etna (Sicily, Italy): Etna today is free of clouds, but strong winds with gusts up to 70 km/h speed prevail. No further significant earthquakes occurred. The only activity remains degassing, and occasional small explosions, not visible, deep inside Bocca Nuova, based on seismic observations (OPEC). ... [meer...]
Explosion from the NE vent of Stromboli on the INGV webcam
Saturday, May 25, 2013
Stromboli (Eolian Islands, Italy): Activity continues at moderately elevated levels. Spectacular explosions especially from the NE crater can often be seen on the webcam as well. ... [meer...]

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