The alert level of Mount Papandayan in Garut, West Java has gone up a notch to alert level 3 - just one level below eruption.

According to Sutopo Purwo Nugroho, spokesman for the National Disaster Mitigation Agency (BNPB) the 2,665-meter volcano had shown a significant increase in tectonic earthquake activity since Friday.

"BNPB has dispatched a quick-response team to assess the necessary emergency action local government and other agencies need to take in order to ensure the safety of residents living around the volcano," Sutopo said.

Mount Papandayan last erupted on Nov. 11, 2002. Even though there were no deaths or casualties, dozens of houses were destroyed by the lava that swept through the villages within the volcano's 10km radius.

It's earliest recorded eruption was in 1772 when it destroyed 40 villages and killed 2,951 people.

Cleveland Volcano, located on uninhabited Chuginadak Island in the Aleutians, has begun building a lava dome. An Alaska volcano has begun erupting, but it is not yet posing a serious hazard to populations or aviation in the region.

The eruption was described as a "slow effusion of magma that is forming a lava dome" by John Power, the scientist-in-charge at the Alaska Volcano Observatory.

Along with the quiet nature of the eruption, the remote siting of the volcano has so far kept the hazard level low.

Mt. Ibu in West Halmahera regency has been emitting thick smoke, causing its alarm status to be raised on Sunday.

Ridwan, a volcanic observer at Mt. Ibu said the mountain's activities had intensified over the past two weeks. Hundreds of small eruptions have been recorded by the seismograph. "There were numerous tremors. Therefore we increased its status to alert level II," he said yesterday.

Ridwan said the mountain had been closed to hikers and people were prohibited from getting within 3 kilometers of Mt Ibu's crater. "We announced this two weeks ago and have intensified our observations. We hope people will be aware," he said.

The Kamchatka Peninsula, along Russia's Pacific coast, is currently the most volcanically active area in the world: four volcanoes are erupting simultaneously, and a fifth is showing signs of an impending eruption. Ash plumes from two of these volcanoes and a thermal anomaly marking active lava flow at a third are visible in this natural-color satellite image.

Along the northern (top) edge of the image Shiveluch emits a broad gray plume from the lava dome growing on its southern flank. 90 kilometers (60 miles) to the southwest a much smaller plume escapes from Bezymianny. Further south, an area where the instrument measured high temperatures over land is outlined in red, marking Kizimen.

Lava continues to erupt from volcanic vents on Hawaii's Mount Kilauea and has pooled into a huge lava pond on the volcano's active east rift zone.

Spatter cones, formed from molten lava ejected from a volcanic vent, are feeding narrow, fast-moving lava flows, according to an eruption update from the U.S. Geological Survey's (USGS) Hawaiian Volcano Observatory. This area of Mount Kilauea has been erupting since 1983 with few interruptions.

One of Alaska's most active volcanoes has started erupting, according to the Alaska Volcano Observatory (AVO).

The 1,730 m (5,676 ft) high Cleveland Volcano, also known as Mount Cleveland, began erupting early on Tuesday. However, the stratovolcano's remoteness is limiting opportunities for its study, reported the AVO which is relying heavily on satellites for monitoring.

According to the AVO: "Without a real-time seismic network on the volcano, AVO is unable to track local earthquake activity related to volcanic unrest, provide forecasts of eruptive activity, or confirmation of explosive, ash-producing events. AVO is monitoring the volcano using satellite data as it becomes available. Such data suggests that effusive eruption of the lava dome in the summit crater is possibly continuing."

One of the most active volcanoes in the Aleutian Arc, Cleveland has erupted at least 21 times in the last 230 years. A VEI 3 eruption in 1944 produced the arc's only direct volcanic fatality. Most recently Mount Cleveland has erupted three times in 2009, and twice in 2010.

A team of scientists just discovered a new eruption of Axial Seamount, an undersea volcano located about 250 miles off the Oregon coast -- and one of the most active and intensely studied seamounts in the world.

What makes the event so intriguing is that the scientists had forecast the eruption starting five years ago -- the first successful forecast of an undersea volcano.

Bill Chadwick, an Oregon State University geologist, and Scott Nooner, of Columbia University, have been monitoring Axial Seamount for more than a decade, and in 2006 published a paper in the Journal of Volcanology and Geothermal Research in which they forecast that Axial would erupt before the year 2014. Their forecast was based on a series of seafloor pressure measurements that indicated the volcano was inflating.

Manado -- A volcano that has been spewing lava and clouds of searing gas high into the air let out a new, powerful burst Monday, sending panicked villagers streaming down the sides of the mountain.

One person was injured, said Ludianto, head of the search and rescue team, a man who fell as he was fleeing. The victim suffered only cuts and bruises, however, and no burns as earlier reported.

Mount Karangetang on Siau -- part of the Sulawesi island chain -- started spitting clouds of gas and lava up to 600 meters on Friday, said vulcanologist Surono.

Menacing and beautiful in equal measure, Mount Etna illuminates the cathedral of Zafferana Etnea with its latest violent eruptions.

In these stunning pictures, Europe's most active volcano appears to be spewing lava right onto the 19th century church.

The Sicilian municipality was in no immediate danger because the lava flowed into a valley, but flights had to be cancelled overnight because of the resulting ash.

Catania's Fontanarossa airport was shut from midnight to 7am this morning.

On the late evening of 1 August 2011, a conspicuous lava flow started to descend the northern slope of the Sciara del Fuoco at Stromboli. This marks the first lava effusion outside the crater terrace since the emission of a small lava flow in the night of 11-12 December 2010.

Around 2100 GMT on 1 August, a vast accumulation of incandescent material appeared at the base of vent N1, the northernmost of the various active vents that lie within the crater terrace at about 750 m elevation on Stromboli. A few minutes later, this material started to collapse and slide, and then developed two small lobes of lava, the more easterly of which descended slowly on the steep slope of the northern portion of the Sciara del Fuoco, repeatedly generating collapse and small landslides derived from the loose material that the slope is made of. The lava then accumulated on the flat area where the hornitos of the 2002-2003 eruption had been located, before making its way down the steep slope below that flat area (as is shown in the two bottom frames in the figure above). On the late morning of 2 August, the lava flow had descended to about 500 m elevation and was advancing very slowly. During the early afternoon of the same day, feeding of the lava flow appeared to diminish.

This lava flow represents the first major summit overflow at Stromboli for several decades, the most recent similar event being the eruption of November 1975. During the subsequent eruptions, in 1985-1986 and 2002-2003, lava effusion occurred from eruptive fissures on the upper northern slope of the Sciara del Fuoco, whereas in 2007, the main effusive vent was located at 400 m elevation. Differently from these eruptions, the usual Strombolian activity from the summit craters has not ceased with the onset of lava effusion on 1-2 August 2011.