Bromo with further ash emissions

Mount Bromo continues to emit volcanic ash. According to the VAAC, the ash reaches a height of 3700 m above sea level. Compared to yesterday, this is an increase in activity. Access to the crater rim was already closed at the end of February. There is a 1 km exclusion zone around the crater. This is not only a popular destination for tourists, but also for religious pilgrims. In the crater of Bromos, the Hindu god Brahma is supposed to reside. The god is often sacrificed, mostly in the form of crops. But even living animals like to be pushed into the crater. The most important festival is the Kasada, which is celebrated once a year.

Mayon erupted ashcloud

The Mayon in the Philippines erupted today for the third time this year. The VAAC Tokyo reports volcanic ash at a height of 4 km. PHILVOLCS yesterday recorded 2 volcanotectonic earthquakes and a seismic rockfall signal triggered by a debris avalanche that produced a small ash cloud. At night a weak glowing was observed above the crater. Satellite photos show a clear thermal anomaly indicating that the volcano is heating up. Sulfur dioxide emissions are just under 1000 tons a day. The alarm level is set to “2”.

Gunung Agung launches ash cloud

On the Indonesian island of Bali, the Gunung Agung erupted an ash cloud. The eruption occurred at 00:47 local time. The height of the eruption clouds could not be determined. Nevertheless, the alert status for the air traffic was set on “orange”. Tremor was recorded, which had an amplitude of 21 mm and lasted 230 seconds. These data are in the context of the last registered eruptions on the holiday island.

Piton Fournaise: Eruption intensifies

The eruption on the Piton de la Fournaise has intensified. On 5th and 7th of March new fissures opened, one of which is still active. There are 2 lava fountains that feed lava flows. The Lava output is about 30 cubic meters per second. The end of the lava flow is at 1000 m altitude. The distance to the coastal road is 5 km. The tremor rose and 49 volcanotectonic earthquakes were registered.

The eruption started on 20. February, just one day after a short-lived eruption.

Bezymianny (Russia) – Report for 27 February-5 March 2019

KVERT reported that a thermal anomaly over Bezymianny was identified in satellite images during 28 February-1 March. Strong gas-and-steam emissions continued to be visible. The Aviation Color Code remained at Orange (the second highest level on a four-color scale).

Source: Kamchatkan Volcanic Eruption Response Team (KVERT). Published by the GVP/USGS

Karymsky (Russia) – Report for 27 February-5 March 2019

KVERT reported that ash plumes from Karymsky were identified in satellite images during 22 and 24-26 February rising as high as 3.5 km (11,500 ft) a.s.l. and drifting 216 km E. A thermal anomaly was visible during 24-25 and 27-28 February. The Aviation Color Code remained at Orange (the second highest level on a four-color scale).

Source: Kamchatkan Volcanic Eruption Response Team (KVERT). Published by the GVP/USGS

Piton de la Fournaise (France) – Report for 27 February-5 March 2019

OVPF reported that the fissure that opened 19 February at a site located at 1,800 m elevation at the foot of Piton Madoré, E of Piton de la Fournaise?s Dolomieu Crater, continued during 27 February-5 March. RSAM measurements showed fluctuating intensities though an overall upwards trend. Based on satellite images, the main flow front progressed slowly during 22-28 February, advancing only 300 m to 1,200 m elevation. A new lava flow emerged from an area near the cone and traveled NE; the more southern branches did not advance during 28 February-1 March. Scientists conducted fieldwork on 5 March and noted that the cone had grown to 100 m wide at the base, 25 m tall, and had a vent opening 50 m wide. High-temperature gas emissions rose from the vent, and Strombolian activity ejected material. White steam rose from the base of the cone, likely from the presence of lava tubes. The northernmost lava flow remained active.

Source: Observatoire Volcanologique du Piton de la Fournaise (OVPF). Published by the GVP/USGS

Aira (Japan) – Report for 27 February-5 March 2019

JMA reported that incandescence from Minamidake crater (at Aira Caldera?s Sakurajima volcano) was occasionally visible during 25 February-4 March. There were four events and seven explosive events. Plumes rose as high as 2.3 km, and material as ejected as far as 1.1 km from the crater. The Alert Level remained at 3 (on a 5-level scale).

Source: Japan Meteorological Agency (JMA). Published by the GVP/USGS

Dukono (Indonesia) – Report for 27 February-5 March 2019

Based on satellite and wind model data, ground observations, and notices from PVMBG, the Darwin VAAC reported that during 27 February-5 March ash plumes from Dukono rose to altitudes of 2.1-2.4 km (7,000-8,000 ft) a.s.l. and drifted in multiple directions. On 28 February two plumes rising from the crater were visible; a northern plume was identified in satellite images and a southern plume rising to less than 1.5 km (5,000 ft) a.s.l. was reported by a ground observer. The Alert Level remained at 2 (on a scale of 1-4), and visitors were warned to remain outside of the 2-km exclusion zone.

Source: Darwin Volcanic Ash Advisory Centre (VAAC). Published by the GVP/USGS

Poas (Costa Rica) – Report for 20 February-26 February 2019 – NEW

OVSICORI-UNA reported that during 23-26 February seismicity at Poás was dominated by low-frequency events. Robust gas emissions rose from four fumarolic vents in the area previously covered by a lake, though the most vigorous emissions originated from vent A (Boca Roja). Minor incandescence from vent A was sometimes visible at night. A sulfur odor was reported in areas downwind including Naranjo, Zarcero, and Grecia (16 km SW). Particles of molten sulfur were included in ash deposits collected in Naranjo. Ashfall was reported in Canoas de Alajuela on 26 February.
Source: Observatorio Vulcanologico y Sismologico de Costa Rica-Universidad Nacional (OVSICORI-UNA)