Volcanic activity worldwide 29 Jul 2016: Pacaya volcano, Fuego, Colima, Semeru, Shiveluch, Piton de ...
Fri, 29 Jul 2016, 09:4009:40 AM |
Map of today's active volcanoes
Small ash plume from an avalanche at Shiveluch volcano yesterday (KVERT webcam)
Explosion at Sinabung yesterday (28 July 2016) at 09:29 local time, generating a plume of 1000 m (photo: PVMBG)
Weak explosive activity at Semeru on 26 July 2016 (image: Yoga Ikhsanto / facebook)
Map of Kilauea's new lava flow that reached the sea on 26 July 2016
avlof Volcano on 28 July 2016, showing an ash and steam cloud drifting to the northeast (photo: Pavel Izbekov / AVO)
Eruption at Colima volcano yesterday evening
Seismic signal from Pacaya's PCG station showing degassing and spattering / strombolian explosions going on (INSIVUMEH)
Lava fountaining from Fuego volcano this morning
Small ash emission from Nevado del Ruiz yesterday evening (INGEOMINAS webcam)
Shiveluch (Kamchatka): The effusive and explosive activity at the volcano continue at currently relatively low levels. Occasional small avalanches occur from the active dome, but little or no glow can be seen on night-time webcam imagery, suggesting that the effusion rate is at the lower end at the moment.
Number of earthquakes under Piton de la Fournaise volcano over the past weeks(OVPF)
Chirpoi (Kurile Islands, Russia): SVERT reported that a thermal anomaly over Snow, a volcano of Chirpoi, was detected in satellite images during 18 and 20-24 July. Steam-and-gas emissions were visible drifting SW on 16 July and may have contained minor amounts of ash. Steam-and-gas emissions during 22-24 July drifted as far as 90 km N. The Aviation Color Code remained at Yellow.
(Source:Smithsonian / USGS Weekly Volcanic Activity Report 20-26 July 2016)
Bagana (Bougainville Island, Papua New Guinea): A small ash emission from the volcano was reported yesterday evening. According to Darwin VAAC, a plume at approx. 7,000 ft (2.1 km) altitude extended 35 km west from the volcano.
Sinabung (Sumatra, Indonesia): Explosive and effusive activity continue with no significant changes at relatively low level. Almost every day, the lava dome produces small to moderate ash explosions at the summit.
Semeru (East Java, Indonesia): During an ongoing tour in East Java, our small group observed glow and mild explosive (strombolian) activity from Semeru volcano's summit crater. The lava flow in the southern ravine was inactive.
Kilauea (Hawai'i): As of yesterday evening (morning in Hawai'i), the new sea entry of the "61G" lava flow near the Kamokuna area continued to be active with and was at least 20 meters wide, spilling over the older sea cliff.
It can be expected that the sea entry will widen over time. Another lobe of the main flow has been advancing along the west margin and might hit the ocean soon as well.
At the summit and Pu'u 'O'o crater on the eastern rift zone, no significant changes have occurred. Halema'uma'u lava lake has risen a bit again to approx. 23 m below the crater floor rim and the lava pond inside Pu'u 'O'o is active as well.
Pavlof (Alaska Peninsula, USA): Weak eruptive activity has been observed at the volcano in the form of intense steaming and small ash emissions and the aviation color code was raised to orange yesterday.
Most likely, the summit crater vent is currently producing strombolian-type activity, possibly along with the effusion of lava flows. Seismic activity has been elevated.
... [read more]
Colima (Western Mexico): Intermittent explosions continue at the volcano from time to time, but with comparably low intensity. No or little glow is visible from the volcano's summit at night, suggesting that the magma column is relatively deep inside the conduit currently.
Pacaya (Guatemala): Mild strombolian activity continues from the Mackenney crater. According to a recent report, this activity ejected glowing material to 75 m above the crater and weak incandescence could be observed from the crater at night.
Fuego (Guatemala): Another intense eruptive phase with strong explosions, lava fountaining and abundant lava flow activity is in progress at the volcano.
After increasing gradually over the past week, the new so-called paroxysm (the 12th such phase in 2016 according to INSIVUMEH) started yesterday morning and seems now to be at its peak. Strombolian-type explosions and/or pulsating lava fountains eject glowing lava to 400 m or more, generating abundant glowing avalanches on the upper cone, and are accompanied by shock waves that can be felt in up to 15 km distance.
Two lava flows of each about 2000 m length are descending the Las Lajas and Santa Teresa gullies on the southeastern flank.
Nevado del Ruiz (Colombia): Sporadic, usually small ash emissions continue to occur from time to time (every few days) such as last night (s. image attached). These explosions are likely phreatic in nature, i.e. driven by steam explosions inside the currently unstable hydrothermal system heated by an underlying magma intrusion at shallow depth.
On 24 July, Washington VAAC reported a possible ash plume from Ruiz that rose to an altitude of 7.2 km (23,000 ft) a.s.l.
On 26 July, an ash plume was detected that rose to an altitude of 6.9 km (22,000 ft) a.s.l. and drifted W.
Piton de la Fournaise (La Réunion): Signs that a new eruption of the volcano in the near future could be in the making have been increasing. In a bulletin yesterday, the volcano observatory (OVPF) reported elevated seismic activity, deformation and gas emissions that are consistent with the rise of magma to shallow depths.
The recent seismic unrest began on 13 July; since then, OVPF recorded 163 shallow volcano-tectonic earthquakes (at depths within 2 km below the summit), including two swarms on 19 and 26 July, as well as 226 small collapses and rockfalls in the Dolomieu Crater.
... [read more]
Volcano Activity Summary for 29 Jul 2016:
Thu, 28 Jul 2016, 21:00
Chikurachki (Paramushir Island): A new eruption was reported by Tokyo VAAC who discovered new ash emissions from the volcano since yesterday morning. The ash plume observed on Himawari 8 satellite imagery rose to estimated 18,000 ft (5.4 km) altitude and drifted over 150 km to the NE passing the southern part of the Kamchatka peninsula. ... read all
Wed, 27 Jul 2016, 21:00
Tue, 26 Jul 2016, 21:00
Kilauea (Hawai'i): (26 Jul) Over the weekend, the lava flow in the coastal flat had advanced significantly, bringing the closest lava flow front to only 370 m distance from the coast as of Monday morning (Hawaiian time). Chances to see lava entering the sea in the coming days or weeks are increasing with each day. ... read all
Mon, 25 Jul 2016, 16:56
Volcanic activity worldwide 25 Jul 2016: Fuego volcano, Kliuchevskoi, Popocatépetl, Turrialba, Maun...
Kliuchevskoi (Kamchatka): The volcano continues to erupt a lava flow that descends on the eastern flank. It also sometimes (such as during much of yesterday) has phases of near-continuous explosions at the summit craters, generating ash plumes that rise up to approx. 1 km from the summit. Today, no significant ash emissions were observed. ... read all
Thu, 21 Jul 2016, 16:06
Volcanic activity worldwide 21 Jul 2016: Kliuchevskoi volcano, Pavlof, Sinabung, Nevados de Chillán...