Volcanic activity worldwide 27 May 2014: Etna, Shiveluch, Ubinas, Momotombo, Santa María / Santiagu...
Tue, 27 May 2014, 16:3916:39 PM |
Strombolian explosion at Etna's NSEC (Radiostudio7 webcam)
Eruption from Shiveluch this morning in Kamchatka
Small ash explosion at Popocatépetl yesterday
Map of recent earthquakes at Momotombo volcano
Current seismic activity at San Miguel (VSM station, MARN)
Steam and ash plume from Ubinas today
Etna (Sicily, Italy): Weak strombolian activity continues with little variation from the New SE crater. A slightly increasing trend of tremor amplitude can be observed over the past days.
MODIS hot spots at Heard Island (MODVOLC, Univ. Hawaii)
Shiveluch (Kamchatka): The volcano remains very active, growing its lava dome which occasionally looses some of its mass due to avalanches and explosions. A stronger eruption occurred at the volcano this morning producing an ash plume that rose to 33,000 ft (10 km) altitude and drifted to the SE.
Bagana (Bougainville Island, Papua New Guinea): Explosive (likely strong strombolian-type) eruptions continue at the volcano. An ash plume to estimated 10,000 (3 km) altitude was observed extending 35 nautical miles to the west this morning (VAAC Darwin).
Batu Tara (Sunda Islands, Indonesia): A few explosions were again strong enough to produce plumes that were spotted on satellite imagery recently.
Sinabung (Sumatra, Indonesia): Weak lava extrusion continues to add material to the viscous lava lobe, which at the same time looses some of its mass in occasional small rockfalls from its front and the sides. These sometimes result in small pyroclastic flows.
Shishaldin (United States, Aleutian Islands): Low-level eruptive activity likely continues, according to the Alaska Volcano Observatory, although no direct observations could be made during the past 24 hours. Seismic signals suggest occasional small explosions. The alert status remains orange.
Popocatépetl (Central Mexico): No significant changes have occurred in the volcano's activity during the past weeks. Magma continues to rise, at fluctuating rates, slowly into the summit crater, producing weak intermittent explosions and glow at night.
A small swarm of earthquakes with 6 volcano-tectonic quakes of magnitudes 2.6, 2.7, 1.8, 3.0, 2.6 and 3.0 occurred during 25-26 May.
The alert level remains unchanged at "Yellow Phase 2". (CENAPRED)
Santa María / Santiaguito (Guatemala): A new viscous lava flow has started to slowly descend through the ravine on the eastern flank of the Caliente dome. Rock falls and strong degassing accompany this activity.
Pacaya (Guatemala): The volcano remains quiet. INSIVUMEH reports only a continuous degassing plume reaching about 50 m above the crater.
Fuego (Guatemala): Explosive activity has been weaker recently, with pulses of strombolian explosions ejecting incandescent material to up to 100 m above the crater. Effusive activity continued to feed the lava flow towards Barranca Taniluyá. This morning, it was still about 100 m long.
Momotombo (Nicaragua): A strong swarm of earthquakes occurred at shallow (1-10 km) depths beneath the southern flank of the volcano during Sunday-Monday. The largest quake was a magnitude 4.1 event.
While the quakes could be related to magmatic intrusions, they more likely represent aftershocks from April's twin M6 earthquakes.
San Miguel (El Salvador): Seismic activity remains at elevated levels and the volcano emits strong pulsating gas and steam puffs rising to approx. 800 m. Heavy rainfalls have been causing damage due to mud flows in the areas at the feet of the volcano.
No further ash emissions were mentioned in SNET's latest report, but reported that ground observers heard noises of what could be falling ejecta from explosions at the volcano. This could not be confirmed.
Ubinas (Peru): Steam and weak ash emissions continue at the volcano, but have decreased over the past days along with weaker seismic activity.
Heard (Australia, Southern Indian Ocean): Some activity has probably resumed (or continued) at the remote volcano. The latest MODVOLC images show a significant hot spot at the summit crater.
While the nature of the activity cannot be determined with certainty, the absence of ash on the snow-covered flanks of the volcano visible on satellite imagery, suggests that the activity is not or only weakly explosive and could consist in turn in the presence of a small lava lake.
Sat, 24 May 2014, 21:00
Fri, 23 May 2014, 21:00
Thu, 22 May 2014, 21:00
Tue, 20 May 2014, 21:00
Kilauea (Hawai'i): (20 May) After a week of many changes here on Kilauea, summit tilemeters recorded slowing inflationary tilt. The summit tiltmeters recorded the start of inflationary tilt at 6:30pm on Saturday May 17th - this suggests that the unusual deflationary tilt recorded since May 10 may have been a DI tilt event that totaled almost 8 microradians before the tilt switched. ... read all
Sun, 18 May 2014, 21:00
Batu Tara (Sunda Islands, Indonesia): (18 May) The volcano has entered a phase of more vigorous explosions again. In the past days, it produced a series of ash plumes that were detected on satellite imagery. VAAC Darwin reported volcanic ash drifting at 8,000 ft (2.4 km) altitude for 50 km to the west. ... read all