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Volcanic activity worldwide 5 Feb 2015: Kliuchevskoi volcano, Colima, Soputan, Karangetang, Reventad...

Donnerstag Feb 05, 2015 20:40 |

Klyuchevskoy's lava flow last night on KVERT's webcam
Klyuchevskoy's lava flow last night on KVERT's webcam
Stronger strombolian eruption at Aso on 3 Feb (Kyoto Univ. crater webcam)
Stronger strombolian eruption at Aso on 3 Feb (Kyoto Univ. crater webcam)
Glowing avalanches from Karangetang volcano yesterday (photo: Andi Rosadi / VolcanoDiscovery Indonesia)
Glowing avalanches from Karangetang volcano yesterday (photo: Andi Rosadi / VolcanoDiscovery Indonesia)
Explosion at Colima today
Explosion at Colima today
Lava flow from Piton de la Fournaise this evening
Lava flow from Piton de la Fournaise this evening
Kliuchevskoi (Kamchatka): Strombolian explosions of small to moderate size and an active lava flow on the volcano's upper flank continue.

Zhupanovsky (Kamchatka, Russia): Moderate intermittent explosive activity continues at the volcano. Satellite images detected ash plumes drifting 160 km SW and SE at altitudes of 5-6 km (16,400-19,700 ft) a.s.l. during 22 and 25-26 January, and a thermal anomaly over the volcano during 23 and 25-27 January. The Aviation Color Code remained at Orange. (Smithsonian / USGS Weekly Volcanic Activity Report 28 January-3 February 2015)

Chirpoi (Kurile Islands, Russia): A weak thermal anomaly at the summit of Snow volcano continues to be detected on satellite data.

Chirinkotan (Northern Kuriles): SVERT reported that weak steam-and-gas emissions from Chirinkotan were detected in satellite images on 31 January.
Cloud cover obscured views on the other days during 26 January-2 February. The Aviation Color Code remained at Yellow. (Smithsonian / USGS Weekly Volcanic Activity Report 28 January-3 February 2015)

Aso (Kyushu): No significant changes have occurred at the ongoing strombolian eruption from Asosan's Nakadake Crater althugh its intensity seems to have decreased. Incandescent material from intermittent explosions is sometimes ejected onto the crater rim, and plumes rise up to approx. 1 km above the crater.

Manam (Papua New Guinea): RVO reported that activity at both Manam's Southern Crater and Main Crater was low during 1-31 January; diffuse white vapor emissions were observed rising from both craters during brief clear views.
Incandescence from Main Crater fluctuated from weak to bright during 19 and 23-27 January. (Smithsonian / USGS Weekly Volcanic Activity Report 28 January-3 February 2015)

Karangetang (Siau Island, Sangihe Islands, Indonesia): Since 10 Jan 2015, the volcano has been active again. A lava dome is growing at the summit, producing incandescent avalanches.
Our correspondent Andi who visited the volcano during the pst days wrote: "Mt Karangetang spews lava flows and the status has been raised again into level 3. According to the seismic recordings from the observatory post, there are harmonic tremor and volcanic quakes, indicating the ongoing dome building. A warning was issued to the local population to prepare for possible evacuations."

Soputan (North Sulawesi, Indonesia): The volcano remains active, producing explosions and incandescent rockfalls as our correspondant Andi reported. On 2 February, an ash plume from Soputan rose to an altitude of 6.1 km (20,000 ft) a.s.l.

Ruapehu (North Island): The crater lake temperature has been increasing since early December 2014, rising from 15 to over 40 deg C. This is not seen as a sign that an eruption is to be expected in the near futures and the alert level remains at level 1, meaning minor unrest only.
The volcano's lake undergoes frequent cycles of cooling and heating. It seems that the lake is now at the peak of the current cycle. Similar temperatures were recorded in March 2011 and April 2014, before the lake cooled again.
... [read more]

Colima (Western Mexico): After being a bit lower during the past week, activity has picked up again today. The volcano had a series of small to moderate explosions ejecting ash plumes reaching up to 2-3 km above the crater:

... [read more]

Reventador (Ecuador): Activity with sporadic small explosions from the active dome continues. Seismic activity is at moderate levels.

Piton de la Fournaise (La Réunion): The eruption continues with active lava flow effusion from a row of 7 vents on the upper flank of the Dolomieu crater.
The latest bulletin of OVPF reports currently low tremor and confirms that the eruptive fissure originally was 500 m long. Effusive activity quickly focussed to the lower end of it at approx. 2500 m altitude.
... [read more]
Vorherige Nachrichten
View of the eruption (OVPF webcam)
Mittwoch, Feb 04, 2015
Piton de la Fournaise (La Réunion): A new eruption has started at the volcano, following a brief seismic crisis that started early this morning. ... [mehr]
Thickness map of the Holuhraun lava flow field (Scientific Advisory Board)
Dienstag, Feb 03, 2015
Bardarbunga (Central Iceland): The eruption, now going on for more than 150 days, continues with little changes. Although it has started to decrease, very slowly, in intensity, it remains impressive and magma discharge is still an impressive approx. 100 cubic meters per second. ... [mehr]
Etna seen from Paternó on the SSW flank
Sonntag, Feb 01, 2015
Etna (Sicily, Italy): The new eruptive phase continues. Dense cloud cover has prevented detailed observations, but from occasional clearings and other observations, it seems that the intense strombolian eruptions are going on from a vent between the old and New SE crater, feeding a lava flow, at least 2.5 km long onto the southwestern slope. ... [mehr]
Current tremor signal (ESLNZ station, INGV Catania)
Samstag, Jan 31, 2015
Etna (Sicily, Italy): After a few days of apparent calm, new activity resumes on Etna: Seismic tremor started to rise steeply this morning about 6:00 (local time). At the moment it is still elevated with an overall increasing tendency. ... [mehr]

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