Volcanic activity worldwide 17 Jan 2014: Puyehue-Cordón Caulle, El Misti, Santa María / Santiaguit...
Freitag Jan 17, 2014 11:37 |
Intense steaming from Sinabung this morning (VSI webcam)
The report of IGP showing the signals of the seismic swarm at EL Misti volcano in Peru
Sakurajima (Kyushu, Japan)
Satellite image showing the plume from Puyehue yesterday (thanks to Sergio Abarca Delgad @sergio_raptor / Twitter)
: Vulcanian-type explosions, which presented a spectacular show during much of the past year, are again becoming more frequent at the volcano, with now averaging one event per day.
This is still very low compared to most of last year, but a significant increase compared to the past 3 weeks when there were almost none.Sinabung (Sumatra, Indonesia)
: Activity remains elevated although pyroclastic flows seem to have become less frequent over the past 24 hours.
This could be due to several possibilities or a combination of them:... [read more]Popocatépetl (Central Mexico)
: The volcano's activity, essentially unchanged over the past weeks, has returned to very low levels, with usually less than 5 weak explosive emissions per day. Crater glow remains visible at night, indicating continuing slow lava extrusion.Santa María / Santiaguito (Guatemala)
: The effusion of blocky lava from the deom has become weaker, evidenced by some avalanches from the southern and southeastern rims. Explosive activity seems in turn to be picking up. On average 2-3 explosions per hour are seen from the Caliente lava dome with ash plumes rising up to 800 m and often causing light ash fall in areas to the southwest.Pacaya (Guatemala)
: The lava flow from the southern fissure vent at the base of Mackenney crater remains active, and weak strombolian activity occurs at the summit vent.Fuego (Guatemala)
: No changes in the explosive and effusive activity at the volcano occurred.
13 explosions were observed during the past 24 hours (11 weak and 2 moderate ones) with ash plumes rising up to 800 m above the crater and forming a plume 8 kilometers to the south and southwest. Incandescent material was seen rising to 75-125 m and locomotive-like degassing sounds, as well as shock waves were noted.
The lava flow on the upper SE flank remained moderately alimented and was 300 m long yesterday morning.El Misti (Peru)
: The volcano experienced an earthquake swarm during 14-15 January, IGP reported in its latest bulletin. An increase of approx. 25% in seismic activity overall with respect to last year's average was calculated, but IGP stresses that this activity is still low and does not suggest new activity in a near future.
According to the report, a total of 418 seismic events were recorded during the first half of January, most of them during the swarm that occurred on 14-15 Jan when almost 120 quakes were registered within 17 hours. From these events, 144 were so called long-period quakes (internal fluid movements), 269 volcano-tectonic earthquakes (internal rock fracturing) and 5 short pulses of tremor (internal vibration).
El Misti, which is only 17 km from the center of Arequipa city, is one of the countries major and most active volcanoes. Due to its closeness to a large city and its history of explosive eruptions, it is also one of the most dangerous volcanoes in South America, and clearly one that deserves being closely monitored.Puyehue-Cordón Caulle (Central Chile and Argentina)
: A small emission of gas and some ash was reported by Buenos Aires VAAC. In fact, a diluted plume of gas, steam, and possibly some volcanic ash is visible on satellite images from yesterday and this morning.
However, the ash if present might have been picked up by winds. It is unclear whether the volcano has actually erupted and new ash. SERNAGEOMIN has not reported any unusual activity and keeps the volcano's status at green (normal).
Volcano Activity Summary for 17 Jan 2014:
Currently erupting:Ambrym (Vanuatu)
: active lava lakes in several craters (updated 13 Jan 2014)Bagana (Bougainville Island, Papua New Guinea)
: ash explosions (updated 10 Dec 2013)Batu Tara (Sunda Islands, Indonesia)
: strombolian explosions, ash plumes up to 500 m, extrusion of a small lava dome with rockfalls (updated 6 Nov 2013)Colima (Western Mexico)
: explosions and lava flows (updated 5 Dec 2013)Dukono (Halmahera)
: thermal anomaly, probably small explosive activity in summit crater (updated 14 Jan 2014)Erebus (Antarctica)
: active lava lake in summit crater (updated 21 Jan 2012)Erta Ale (Ethiopia)
: active lava lake in northern pit crater, active hornito with intermittend flow in southern crater (updated 11 Jan 2013)Etna (Sicily, Italy)
: degassing, seismic unrest (updated 29 Dec 2013)Fuego (Guatemala)
: strombolian explosions (updated 17 Jan 2014)Ibu (Halmahera, Indonesia)
: growing lava dome, seismic unrest (updated 23 Oct 2013)Karymsky (Kamchatka)
: occasional small explosions, thermal anomaly (updated 2 Jan 2014)Kilauea (Hawai'i)
: lava lakes in Halemau'uma'u and Pu'u 'O'o, lava flows on coastal flat and weakly active ocean entries (updated 13 Aug 2013)Nishino-shima (Volcano Islands, Japan)
: lava effusion enlarging the new island (updated 15 Jan 2014)Nyiragongo (DRCongo)
: active lava lake in summit crater (updated 12 Jun 2013)Ol Doinyo Lengai (Tanzania)
: effusion of natrocarbonatite lava inside the crater (updated 8 Jul 2013)Pacaya (Guatemala)
: paroxysm with lava flows and strombolian activity on 10-11 Jan 2014 (updated 17 Jan 2014)Reventador (Ecuador)
: ash explosions, occasional pyroclastic flows (updated 14 Nov 2013)Sakurajima (Kyushu, Japan)
: ash venting, intermittent explosions (updated 17 Jan 2014)Santa María / Santiaguito (Guatemala)
: Santiaguito volcano (Guatemala): lava flow on south flank of dome becomes more active (updated 17 Jan 2014)Semeru (East Java, Indonesia)
: growing lava dome, ash venting and small to moderate explosions (updated 18 Oct 2013)Shiveluch (Kamchatka)
: growing lava dome, incandescent avalanches, occasional explosions (updated 13 Jan 2014)Sinabung (Sumatra, Indonesia)
: growing lava dome, pyroclastic flows, occasional explosions (updated 17 Jan 2014)Stromboli (Eolian Islands, Italy)
: continuing lava overflows (updated 3 Nov 2013)Suwanose-jima (Tokara Islands, Japan)
: strombolian to weak vulcanian explosions (updated 13 Jan 2014)Yasur (Tanna Island, Vanuatu)
: ash emissions, weak strombolian explosions (updated 20 Nov 2013)Zhupanovsky (Kamchatka, Russia)
: new explosive activity since 23 Oct (updated 6 Nov 2013)
Eruption warning / minor activity:Aso (Kyushu)
: intense degassing, occasional ash venting and crater glow (updated 14 Jan 2014)Barren Island (Indian Ocean)
: lava flows (?) (updated 23 Dec 2013)Bezymianny (Central Kamchatka Depression)
: steaming, degassing (updated 2 Jan 2014)Chaitén (Southern Chile and Argentina)
: degassing, possible renewed slow growth of lava dome (updated 24 Dec 2013)Chirinkotan (Northern Kuriles)
: unspecified activity - possibly lava flows (updated 22 Nov 2013)Copahue (Chile/Argentina)
: ash venting (updated 16 Nov 2013)Dieng (Central Java)
: increased degassing (updated 28 Mar 2013)Galeras (Colombia)
: sporadic ash emissions (updated 13 Jan 2014)Heard (Australia, Southern Indian Ocean)
: likely lava lake in summit crater (updated 23 Dec 2013)Iliwerung (Lesser Sunda Islands)
: possible submarine eruption from Mt Hobal on 20 August (updated 20 Aug 2013)Jebel Zubair (Red Sea)
: no signs of activity after 24 Nov 2013 (updated 26 Nov 2013)Karangetang (Siau Island, Sangihe Islands, Indonesia)
: lava extrusion at summit crater, strombolian activity, glowing avalanches (updated 4 Sep 2013)Ketoi (Kurile Islands, Russia)Kirishima (Kyushu)
: degassing, slightly increased seismic activity (updated 30 Jul 2012)Kizimen (Kamchatka)
: degassing (updated 27 Dec 2013)Langila (New Britain, Papua New Guinea)
: occasional ash explosions (updated 22 Nov 2013)Lokon-Empung (North Sulawesi, Indonesia)
: small explosions, lava flow? (updated 24 Sep 2013)Manam (Papua New Guinea)
: degassing, occasional ash venting (updated 5 Dec 2013)Marapi (Western Sumatra, Indonesia)
: occasional ash explosions (updated 9 Jan 2014)Nevado del Ruiz (Colombia)
: seismic unrest (updated 13 Jan 2014)Pagan (Mariana Islands)
: steaming, thermal anomaly (updated 9 Jan 2014)Paluweh (off Flores Island, Indonesia)
: active growing lava dome (updated 27 Dec 2013)Papandayan (West Java)
: strong hydrothermal activity, increased seismicity (updated 6 May 2013)Poas (Costa Rica)
: occasional small phreatic explosions from lake (updated 22 Aug 2013)Popocatépetl (Central Mexico)
: steam/gas/ash emissions (updated 17 Jan 2014)Rabaul (Tavurvur) (New Britain, Papua New Guinea)
: weak ash explosions (updated 9 Jan 2014)Raung (East Java)
: strombolian activity in summit crater (updated 6 Jan 2014)San Miguel (El Salvador)
: new eruption on 29 Dec 2013 (updated 13 Jan 2014)Tangkubanparahu (West Java)
: occasional phreatic explosions (updated 15 Oct 2013)Turrialba (Costa Rica)
: ash venting, strong degassing (updated 24 Jul 2013)
Donnerstag, Jan 16, 2014
Etna (Sicily, Italy)
: A small event this morning at 12:49 (local time) from New SE crater produced an ash plume generated by partial collapse on the NE flank of the cone. ...
Mittwoch, Jan 15, 2014
Nishino-shima (Volcano Islands, Japan)
: The Japanese Coast Guard made an overflight yesterday and published the attached picture of the (former new) island. It seems that while it is still might be effusing some lava that form flows reaching the eastern shore in the bay near the vents, the rate of lava effusion/growth has slowed down. No large changes of the island appear visible when compared to the images a week ago. ...
Dienstag, Jan 14, 2014
: The volcano is active from 2 vents in the Nakadake crater. During the night, sometime strong incandescence, suggesting possible weak (strombolian-type) ejections of lava, steaming and minor ash venting are visible. ...
Montag, Jan 13, 2014
: The volcano continues to erupt viscous lava and has frequent small to medium-sized explosions. This morning, it produced again an ash plume that rose to estimated 27,000 ft (8.1 km) altitude that drifted WSW, Tokyo VAAC alerted the aviation community. ...
Sonntag, Jan 12, 2014
Etna (Sicily, Italy)
: No significant changes have occurred. While the continuing unusually warm weather has stripped much of the snow on Etna's southern side, diffuse weak ash emissions are visible from the NE crater and tremor fluctuates at low levels. ...