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Volcanoes Today, 31 Aug 2015: Lokon-Empung volcano, Karangetang, Dukono, Manam, Kilauea, Cotopaxi

Monday Aug 31, 2015 17:00 PM |
Karangetang in eruption last week (photo: Kamil Syahbana / twitter)
Karangetang in eruption last week (photo: Kamil Syahbana / twitter)
Current seismic trace (BNAS station)
Current seismic trace (BNAS station)
Manam (Papua New Guinea): A volcanic ash plume at estimated 7,000 ft (2.1 km) altitude extending 70 km north from the volcano was reported this morning (VAAC Darwin).

Karangetang (Siau Island, Sangihe Islands, Indonesia): The eruption continues at the volcano: it is characterized by Strombolian activity at the summit crater and lava extrusion that forms frequent incandescent avalanches.
Devy Kamil Syahbana posted images of this activity during the last week.

Dukono (Halmahera): Continuous ash emissions are being observed from the volcano, generating plumes at 2-3 km altitude that drift up to 70-80 km to the east (Darwin VAAC).

Lokon-Empung (North Sulawesi, Indonesia): A small eruption occurred again last Saturday, producing an ash plume that rose approx. 2 km and drifted northeast, caused a temporary closure of the Manado airport.
The explosion occurred around 23:50 local time a vent in or or near Tompaluan crater. The volcano remains at alert level 3 ("siaga") on a scale of 1-4 and a safety zone of 2.5 km around the crater is recommended as similar, sudden explosions are likely to occur again from time to time.

Kilauea (Hawai'i): No significant changes have occurred at the ongoing eruptino on both the summit vent (Halema'uma'u lava lake) and the east rift zone. During the past days, lava flows have resurfaced most of the interior of what is left of Pu'u 'O'o crater.
The lava lake at Kīlauea's summit remains active, and periodically rises and falls along with cycles of inflation and deflation. At the moment, summit tiltmeters have been recording deflation.
The new East Rift Zone lava flow northeast of Puʻu ʻŌʻō remains active within 8 km (5 mi) of the vent. The flow does not currently pose a threat to communities. Low levels of seismic activity continue across the volcano (HVO).

Cotopaxi (Ecuador): Activity at the volcano remains high while seismic activity has been showing a decreasing trend today and been described as moderate by the Geophysical Institute.
During last night and this morning, ash and steam emissions continued, producing a plume that drifted WNW.
Weak ashfall occurred in central Machachi and in the El Chaupi, Pichincha, as well as in parts of the canton Rumiñahui.
Previous news
Steaming and ash emission from Shiveluch this morning
Thursday, Aug 27, 2015
Shiveluch (Kamchatka): Lava extrusion into the volcano's lava dome continues at moderate intensity. Small incandescent avalanches are sometimes visible on night-time webcam images. Steaming and weak to moderate ash emissions accompany this activity. ... [more]
Santiaguito's explosion yesterday morning
Tuesday, Aug 25, 2015
Santiaguito (Guatemala): (25 Aug) A stronger than usual explosion occurred yesterday morning at 08:43 local time, producing a plume that rose approx. 2 km above the lava dome and generated small pyroclastic flows. ... [more]
Steaming and glow from Aso's Nakadake main vent
Monday, Aug 24, 2015
Aso (Kyushu): Activity has been low during the past days, with only intense steaming and dilute ash emissions from the Nakadake crater. Incandescence continues to be visible from the main vent, suggesting magma remains close to the surface. ... [more]
Ash plume from Cotopaxi seen from Quito yesterday (Image: Ministerio Coordinador de Seguridad)
Sunday, Aug 23, 2015
Cotopaxi (Ecuador): Ash emissions have been increasing and producing plumes that rose 2 km above the summit and drifted west for over 50 km. ... [more]
The blocked Showa crater of Sakurajima (image: Asahi Shimbun)
Saturday, Aug 22, 2015
Sakurajima (Kyushu, Japan): (21 Aug) According to Japanese scientists, the scenario of a major eruption at the volcano is becoming more and more likely. The Asahi Shimbun news agency sent a drone to photograph the crater, confirming that a flat dome is currently blocking the conduit. ... [more]
 

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