Volcanic activity worldwide 28 Nov 2016: Fuego volcano, Colima, Dukono, Sabancaya, Chirinkotan, Suwa...
Monday Nov 28, 2016 18:10 PM |
Map of today's active volcanoes
Spot corresponding to the ash plume on fresh Himawari 8 satellite image
Satellite image of Chirinkotan volcano on 28 Nov 2016
Glow from Suwanosejima's Otake crater this evening (JMA webcam)
Satellite image of Dukono volcano on 28 Nov 2016
Location of the observed pumice rafts (image: GeoNet)
Area near yesterday's steam eruption in Rotorua Lake (image: newshub.co.nz / twitter)
The new lava breakout near Puu Oo on 22 Nov 2016 (image: USGS)
Heat signal from Fuego volcano showing the rythmic pattern of so far 15 paroxysms in 2016 (MIROVA)
Strong explosion at Sabancaya this morning (INGEMMET webcam)
Chirinkotan (Northern Kuriles, Russia): A large explosion seems to have occurred a few hours ago at the volcano. A possible ash plume penetrating a thick deck of clouds was spotted by VAAC Tokyo on Himawari-8 satellite data.
Diffuse ash emissions from Copahue this afternoon
If the data interpretation is correct, an explosive eruption has occurred that produced a plume of approx. 10 km altitude which is drifting north.
The remote volcano forming the uninhabited island of the same name is one of the most active of the Kurile Chain. It has often had relatively large explosive eruptions which pose a threat to air traffic on the busy N-America E-Asia routes. It is not monitored other than by satellite imagery.
Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: POSS ERUPTION OBS AT 20161128/1500Z FL290 EXTD N OBS VA DTG:28/1520Z
Suwanose-jima (Ryukyu Islands): The volcano continues to be in a phase of elevated activity which started gradually after around mid November. Webcams show intense glow, presumably generated by frequent explosions and / or the presence of a lava dome (or lava lake) in the active Otake crater in the northern end of the small island.
Low-level, but relatively intense ash emissions have been accompanying the eruption, reaching altitudes of up to approx. 1500 m elevation. The activity and its ash plumes, as long as it is at the current level only, pose no great risks, except to areas in the vicinity of the crater itself and low-flying small aircraft. Depending on wind direction, ash falls can affect infrastructure, in particular the (small) agricultural activity of the tiny population on the island.
Dukono (Halmahera): The activity of the volcano continues to be intense with little changes during the past months. Near continuous ash emissions producing plumes that drift around Halmahera at 2-3 km altitude are regularly being reported by the Volcanic Ash Advisory Center Darwin (VAAC).
This is a typical report sent out this afternoon: CONTINUOUS VA EMISSIONS TO FL070 OBS VA DTG:28/1330Z
Monowai (Kermandec Islands, New Zealand): It is still unclear which volcano produced the pumice raft observed west of Minerva Reef southwest of Tonga (Pacific Ocean) by a New Zealand Royal Air Force aircraft on 16 November.
The pumice rafts were long ribbons, 10 km long and tens to hundreds of meters wide according to satellite images, likely as the combined result of sea waves, winds and currents.The area is between several volcanic arcs: Vanuatu to the north, Tonga arc to the east, and the Kermadec arc to the southeast. New Zealand geologists do not think that it is likely to come from Monowai submarine volcano, but rather think it might be one of the volcanoes in Tonga. However, the origin of the pumices remains a riddle and illustrates how little we know about submarine eruptions.
Rotorua (New Zealand): A small steam explosion (hydrothermal eruption) occurred yesterday in Lake Rotorua. A fountain of water was seen ejected to about 30 m. [read more].
According to New Zealand scientists who closely monitor the country's many active volcanoes (all currently very calm), this is not a sign of impending volcanic activity and there is likely no reason to worry:
"Eruptions have been known in this area all through our written history (1830 – present), so it’s not unusual. The occurrence of steam eruptions has been variable in Rotorua, with many during the exploitation of the geothermal system, however they declined after the bore closure (1987). The last significant one was in 2001."
Kilauea (Hawai'i): Essentially, the eruption continues unchanged. The lava lake in the summit caldera fluctuates in level and was 17 m (56 ft) below the floor of Halema'uma'u crater yesterday. It is expected to rise again now that a new inflation cycle has started.
The new surface lava breakout which started 22 Nov from a point east of Pu'u 'O'o high up on the lava tube of the active 61g flow continues to advance and feed a new flow field that has now reached a bit more than 1 km length.
... [read more]
Colima (Western Mexico): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: VA EMS SEEN IN STLT IMAGERY 28/1425Z.
Volcanic Ash Advisory Center Washington (VAAC) issued the following report: VA EM NOT OBSD
Fuego (Guatemala): The volcano follows its remarkable cycle of paroxysms (intense eruptive phase with lava fountains and rapid lava flow effusion) at regular intervals of approx. 3-4 weeks.
The latest, 15th paroxysm of 2016 so far, has ended a few days ago and the volcano is now in its relatively calm phase in between, characterized by intermittent small to moderate strombolian explosions.
... [read more]
Sabancaya (Peru): The volcano continues to produce frequent mild to moderate explosions and emits a continuous dense steam plume. Over the past weeks, activity has slowly been increasing. Explosions have been becoming more and more frequent and stronger with plumes now regularly reaching more than 4000 m in height.
Peru's Geophysical Institute IGP reported 279 explosions during 14-21 Nov, a slow increase in SO2 emissions (up to 7000 tons/day) and some deformation of the volcano's SE flank, likely a result of a rising body of magma.
Volcanic Ash Advisory Center Buenos Aires (VAAC) issued the following report: VA NOT IDENTIFIABLE FM STLT DATA OBS VA DTG:28/0715Z
Copahue (Chile/Argentina): Activity at the surface and internally (seismicity) has been relatively calm recently. The volcano produced only only minor emissions of steam and occasionally some ash.
Diffuse ash emissions were noted during 16-18, 21-23 and today (28 Nov). These suggest that small strombolian activity continues to occur inside the El Agrio crater.
... [read more]
Volcanic Ash Advisory Center Buenos Aires (VAAC) issued the following report: VA NOT IDENTIFIABLE FM STLT DATA OBS VA DTG:27/0508Z
Michael (United Kingdom, South Sandwich Is): A new eruption is likely underway at the remote volcano (also called like the whole island, Saunders). Since mid October, prominent heat signals coming from the summit of Michael cone can be retrieved on satellite data, but there are no direct (visual or other) observations.
There have been no reports of ash emissions (so far) which implies that the activity is probably minor (small lava lake, strombolian-type explosions ?).
Volcano Activity Summary for 28 Nov 2016:
Volcanic activity worldwide 27 Nov 2016: Colima volcano, Popocatépetl, Shiveluch, Dukono, Sabancaya, Copahue
Sunday, Nov 27, 2016
Shiveluch (Kamchatka): (27 Nov) Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: VA CONTINUOUSLY OBS ON SATELLITE IMAGERY OBS VA DTG:26/2320Z ... [more]
Volcanic activity worldwide 26 Nov 2016: Klyuchevskoy volcano, Colima, Popocatépetl, Shiveluch, Duk...
Saturday, Nov 26, 2016
Klyuchevskoy (Kamchatka): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: POSS ERUPTION OBS AT 20161126/0920Z FL220 EXTD SW OBS VA DTG:26/1030Z ... [more]
Volcanic activity worldwide 25 Nov 2016: Santiaguito volcano, Popocatépetl, Shiveluch, Dukono, Saba...
Friday, Nov 25, 2016
Shiveluch (Kamchatka): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: POSS ERUPTION OBS AT 20161125/0940Z FL150 EXTD W OBS VA DTG:25/1000Z ... [more]
Thursday, Nov 24, 2016
Shiveluch (Kamchatka): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: VA CONTINUOUSLY OBS ON SATELLITE IMAGERY OBS VA DTG:24/1720Z ... [more]
Volcanic activity worldwide 23 Nov 2016: Santiaguito volcano, Dukono, Reventador, Turrialba, Sabanca...
Wednesday, Nov 23, 2016
Suwanose-jima (Ryukyu Islands): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: EXPLODED AT 20161123/1425Z VA CLD UNKNOWN OBS VA DTG:23/1420Z ... [more]