Lava has also repressurized the tube system from Pu‘u ‘Ō‘ō towards the coast, with initial on-the-ground reports of a huge new flow branch around the 425m/1400ft elevation above the pali, perhaps 1km/0.5mi closer to Kalapana. Lava also appears to be vigorously reoccupying the recent lava tubes, breaching them in many places above and on the pali. HVO's "Mobile 2" webcam this morning showed a long open lava channel descending the pali onto the coastal plain in a similar location to recent flows, below where Jack's Lava House used to stand, and other reports have hinted that the previous eastern flow branch on the lower pali has reactivated as well. [less]

www.volcanodiscovery.com/de/reisebericht-lesbos-pilot-reise-mai-2012.html [less]

Another, probably stronger eruption seems to have occurred on 30 May. An ash plume from Shiveluch volcano was detected at 10 km altitude on satellite data (Tokyo VAAC).
Since the volcano is very remote, its eruptions pose little danger to people on the ground, but the ash plumes they produce are a hazard to aircraft en route from N-America to Japan and are closely monitored by satellite. [less]

The explosions were probably phreatic (caused by exploding overheated groundwater as fresh magma is probably rising inside the volcano) and caused ash fall on on the city of Manizales at about 30 km distance from the volcano, as well as in many other towns and villages around the volcano, including the departments of Risaralda and El Àguila.
At the moment, strong degassing and probably ongoing explosive activity is creating a plume of gas, steam and ash rising 500-1000 m above the crater, and a strong odor of sulfur is noted in towns and villages around the volcano. [less]

Recommendation: [less]

Santorin - geologische Wanderreise: 9-15. Juni, 970 EUR (10% Rabatt), 5 freie Plätze
Krakatau Spezialreise (NEU!): 30. Juni - 6. Juli, 1470 EUR, 4 freie Plätze [less]

-- new activity --- [less]

Tokyo VAAC often reported plumes up to 1.8-3.7 km height during 16-20 and 22 May, and pilots observed ash plumes during 16-17 May that rose to altitudes of 2.7-4 km (9,000-13,000 ft) a.s.l. and drifted E and SE.
Very small eruptions were also reported from the second crater Minami-dake on 18 and 19 May. [less]

"On 19 May seismicity at Fuego increased and explosions were heard at 5-10 minute intervals. A 600-m-long lava flow descended the W flank, and a 1-km-long and 20-m-wide lava flow descended the E flank, reaching the base of the volcano. Explosions ejected incandescent tephra 400 m above the crater, and produced ash plumes that rose 5 km above the crater and drifted 30 km S and SW. Coordinadora Nacional para la Reducción de Desastres (CONRED) raised the Alert Level to Orange (the second highest level on a 4-color scale). Pyroclastic flows also descended the flanks, prompting authorities to restrict passage on part of a highway. Ash plumes from the pyroclastic flows rose 3 km above the crater. Ashfall was reported in Morelia (7 km SW), Panimaché I and II (9 km SW), Sangre de Cristo (8 km WSW), and Yepocapa (8 km WNW). Thirteen people from El Porvenir in Alotenango (8 km ENE) evacuated to local shelters. Visual observations and seismicity indicated that activity decreased later that day.
On 20 May a few explosions generated ash plumes that rose 500 m above the crater and drifted 8 km SW. The next day cloud cover prevented observations; however explosions, rumbling, and degassing sounds were reported. On 22 May explosions generated ash plumes that rose as high as 1 km and drifted 10 km S and SE. Rumbling was heard and shock waves were detected. The lava flows were inactive and only incandescence from block avalanches was observed." [less]

The latest data also show that during the first months of 2012, the rate of uplift has decreased. This correlates well with a decrease in seismicity.
A possible interpretation could be that the intrusion of magma is coming to an end, and an eruption in the near to medium future is less and less likely. [less]

The eruption was both explosive and effusive. According to news, the eruption began at 2:45 a.m. with large explosions and lava fountains possibly up to 1 km high from the summit crater. Large incandescent bombs were ejected to considerable distances and showered the summit cone of the volcano. A 500 m long lava flow traveled down on the SW flank towards the Ceniza ravine. The eruption also produced an ash column reaching 5 km (16,000 ft altitude) and pyroclastic flows probably generated mostly by cascading lava blocks traveling down the steep cone's flank into Las Lajas, El Jute y Ceniza valleys.
Ash fall was reported from nearby villages mainly to the S and SW including Morelia, Panimaché I and II, Sangre Cristo and Yepocapa. [less]

Bagana is of the most active volcanoes in Papua New Guinea, but extremely remote and there is no ground-based monitoring, which is why satellites provide the most reliable and timely means of monitoring. [less]

-- new activity --- [less]

On 8 May a 3-hour long eruption took place at Sirung volcano. The eruption was accompanied by loud sounds and incandescent tephra observed rising 10 m above the crater. The explosion created an ash plume that reached 3.5 km altitude and drifted to the north, producing ashfall up to 4 mm thick near the crater.
During 9-12 May white plumes rose 30-50 m above the crater. A sulfur odor was reported in areas up to 3 km away on 12 May. That same day CVGHM raised the Alert Level to 3 (on a scale of 1-4) and recommended that visitors not approach the volcano within a 2.5 km radius. [less]

Herðubreið volcano, located in the Highlands of Iceland in the midst of the Ódáðahraun desert, is an isolated, table-mountain shaped broad cone that formed beneath the icesheet that covered Iceland during the last ice age, which is when the volcano had its last eruption.
Whether the recent seismic swarm is related to the same magmatic system that formed Herðubreið or rather to the larger Askja caldera volcano is difficult to asses. [less]

A small seismic swarm at depths of 1-2 kim occurred yesterday 15 May. [less]

-- new activity --- [less]

Follow the eruption live: webcams.volcanodiscovery.com [less]

The activity followed an increase of elevated SO2 emissions and seismic activity detected in late April. According to reports, the degassing from a crack in the main crater was accompanied by jet-like sounds, and internal rumblings can be heard at the volcano.
Latina Press mentions that scientists are closely monitoring the new activity, but so far, no emergency has been declared and the Masaya Volcano National Park remains open. [less]

The satellite picture shows a plume originating from the island's active crater known as Mt Curry, or sometimes also referred to as Mt Asphyxia. It is possible that the plume is created by lava flows in contact with sea water, as it appears to be mainly steam.
Not much else is known about the eruption, because the island is uninhabited and extremely remote and has no monitoring on the island. Most of the information about this eruption will rely on remote sensing (satellite observations). [less]

-- new activity --- [less]

According to the study, Merapi has entered a new cycle of inflation which is a typical precursor of a new lava dome-building eruption caused by rising magma within the conduit of the volcano. At the moment, there is no way to predict when exactly the next eruption will start, but given that it is one of the world's most active volcanoes, it might not be in a too long future. [less]