Lava lake inside Kilauea volcano's West Gap crater. The whole crust covering the lake has just been overturned, exposing the red hot glowing interior. hawaii_e7837
Thermal image of the crater area of Stromboli (INGV Catania)
Stromboli (Eolian Islands, Italy): Over the past days, Stromboli has returned to normal levels of activity with frequent, mostly small to medium-sized explosions and low to medium tremor. Small lava overflows and frequent rockfalls still occur. ...more
Pavlov (Alaska Peninsula, USA): The eruption continues with no significant changes. Small lava fountaining, explosions, and the explosive interaction of the lava flow with snow and ice generate a plume of steam, ash, and gas, occasionally reaching up to 22,000 ft. above sea level, and extending primarily southeast from the volcano over the North Pacific Ocean visible in satellite images. [以下]
Pavlof volcano eruption column, May 18, 2013. Photo courtesy Theo Chesley. (AVO)
Aerial view of the lava dome in Popo's crater on 18 May (CENAPRED)
Kizimen (Kamchatka): The lava dome remains active and produces hot avalanches on the western and eastern flanks. KVERT reports moderate seismic activity, incandescence of the volcano summit and medium to strong degassing. ...more
Shiveluch (Kamchatka): The activity of the growing lava dome continues with little changes. KVERT reports moderate seismic activity, moderate gas-steam activity and incandescence. [以下]
MODIS hot spot data (past 7 days) for Pavlov volcano (ModVolc, Univ. Hawaii)
Eruption from Popo this morning (CENAPRED webcam)
Sakurajima (Kyushu, Japan): It seems that the latest cycle of increased activity has ended: after several days of intense activity, culminating in larger explosions on 14 and 15 May, the volcano has been "taking a rest" lasting about 2 days. This morning, only a small explosion was recorded. ...more
Pavlov (Alaska Peninsula, USA): The eruption continues with lava fountaining at the summit that feeds a lava flow now over 100 m long and produces a continuous ash, steam, and gas plume extending downwind from the volcano for 50 to 100 km at an altitude of about 20,000 ft above sea level. This morning the cloud was carried to the southeast. Satellite images show persistent elevated surface temperatures at the summit and on the northwest flank. [以下]
View of Pavlof, May 14, 2013. Photo courtesy of pilot Theo Chesley. (AVO)
Moderate explosion at Popocatépetl this morning
Pavlov (Alaska Peninsula, USA): The eruption continues. The volcano produces a lava flow on the northwest flank. Interaction of the lava flow and ice, producing debris flows, as well as possible explosions at the vent produce a steam-ash plume rising up to about 20,000 ft. above sea level. ...more
Residents of Cold Bay, located 37 miles southwest of the volcano, observed incandescent glow at the summit during the night. (AVO) [以下]
Seismic signal from Stromboli this morning (STR8 station, INGV)
Webcam image of Shiveluch (KVERT) showing weak glow and a steam/ash plume rising from the dome
Stromboli (Eolian Islands, Italy): Activity has remained generally elevated and seems to have increased yesterday. Current seismic recordings show strong explosion signals and an increase in tremor. A small lava overflow is currently visible from the NE crater. ...more
Shiveluch (Kamchatka): Lava dome growth continues. This morning, an explosion and/or a partial collapse produced a volcanic ash cloud rising to 15,000 ft (4.7 km) altitude this morning by VAAC Tokyo. [以下]
MODIS hot spot data (past 2 days) for Pavlov volcano (ModVolc, Univ. Hawaii)
Current seismic recording from Popocatépetl
Sakurajima (Kyushu, Japan): Explosive activity has picked up again at the volcano. Today alone, several explosions have occurred, two of which of moderately large size with ash plumes reaching 10,000 and 12,000 ft (3 and 3.7 km) altitude. (VAAC Tokyo) ...more
Pavlov (Alaska Peninsula, USA): Seismic activity has decreased today, but remains elevated. MODIS data confirm a hot spot at the summit, which could suggest a small lava flow there. [以下]
MODIS hot spot data (past 2 days) for Tolbachik volcano (ModVolc, Univ. Hawaii)
Current seismic recording from Popocatépetl
Kizimen (Kamchatka): Activity continues with little changes. Video data showed that the lava dome is still active and produces incandescence and hot avalanches on the western and eastern flanks. Strong and moderate gas-steam activity accompany this process. Satellite data showed a thermal anomaly over the volcano. (KVERT) ...more
Tolbachik (Kamchatka): Although tremor continues to decrease very slowly, KVERT reports that fluid lava is still being erupted from the vent on the southern fissure. MODIS satellite data still show a large hot spot, confirming that the eruption might be longer lasting than thought. [以下]
Current seismic recording at Tungurahua (RETU station, IGPEN)
Popocatépetl (Central Mexico): The activity continued to increase over the past days and CENAPRED raised the alert level to Yellow Phase 3 this morning. The volcano has been producing frequent sequences of continuous steam and ash emissions as well as discrete vulcanian-type explosions that throw glowing bombs to several hundred meters distance from the crater and create ash plumes up to about 2 km high. ...more
A phase of strong volcanic tremor occurred today and a large SO2 plume visible on NOAA satellite data accompanies increase lava output rate. [以下]
SERNAGEOMIN は最近新しい小さな爆発火山で発生した白熱山頂火口で観測された後警告を黄色に調達しています。小さいが、永続的な水蒸気と灰プルームは、火山から約 350 m 上昇しています。この新しい活動が新鮮なマグマの表面に向かって上昇によって引き起こされるかどうか明らかでないが興味深いことに、地震活動の小さな変化は白熱爆発と注目されています。
Popocatépetl (Central Mexico): On 9 May, 28 explosions were noted from the volcano, the largest were at 05:16 and 07:01 am. Incandescence was seen at night. Several periods of harmonic tremor were noted in the reporting period. A gas and steam plume drifted SE. ...more
Popocatépetl (Central Mexico): A significant increase in activity occurred at the volcano. Starting at 19:28 h local time yesterday, volcanic tremor of high amplitude has been recorded for 3.5 hours and accompanied by strong steam and ash emissions creating an eruption column rising 3 km. Explosions ejected incandescent fragments to distances of 700 m from the crater. ...more
The eruption plume drifted ESE and caused ash fall in areas of the villages of San Juan Tianguismanalco, San Pedro Benito Juárez and the City of Puebla. It is possible that more ash fall will be reported from other villages in the east, south-east (Atlixco) and south (Tochimilco).
It contains a reviewed summary of volcano activity during the past month, plus the new Volcano Express section with interesting articles on Machin and Chaiten volcanoes and a review of the pubvolc website. [以下]
Mayon (Luzon Island): A sudden (probably phreatic) powerful eruption from the summit crater occurred this morning and killed at least 5 people in camp #2 and wounded 15 others. ...more
The victims, many foreigners, were part of an organized group of climbers. They were surprised by the explosion that showered the camp area with ballistic blocks that hit them. ... [read more] ... [show less] [以下]
MODIS hot spot data for Paluweh island, showing the hot pyroclastic deposits S, E and W of the dome (MODIS, Univ. Hawaii)
Eruption plume from Cleveland yesterday (AVO / USGS)
Bagana (Bougainville Island, Papua New Guinea): Eruptions have intensified at the volcano. Over the past 2 days, several explosions produced ash plumes rising to about 7,000 ft (2.1 km) altitude and drifting 30-45 nautical miles to the W and NW (VAAC Darwin). ...more
The mighty crater of Marum crater, Ambrym Island, Vanuatu. Very steep crater walls requires steady carefullness. The lava lake of apprx. 40m in diameter in a depht of apprx. 250-300m.
Cleveland (Aleutian Islands, Alaska): A possible explosion occurred this morning at the volcano at 5:00AM AKDT (13:00 UTC) by AVO infrasound recorders. The infrasound signals suggest that this was a relatively short duration, low-level explosion. No eruption cloud has been detected in available satellite views. AVO received no other reports of activity. (USGS / AVO) ...more
Seismic signal from Ruiz this morning (OLL station, INGEOMINAS)
Sakurajima (Kyushu, Japan): Since 1 May, activity has been increasing again from relatively low levels during the weeks before. Over the past 3 days, several explosions have produced ash plumes rising to 10,000 ft (3 km) altitude and on most days, there have been 3-4 daily explosions (for Sakurajima, this is a large number). ...more
Popocatépetl (Central Mexico): Some small earthquake swarms have occurred at the volcano in the past days, probably associated with some batches of fresh magma intruding into the system at shallow depth. [以下]
Thermal webcam image of the crater area of Stromboli (INGV)
Tremor signal (ESLN station, INGV)
Stromboli (Eolian Islands, Italy): Lava continues to intermittently flow over and out of vents at the rim and the base of the NE crater. Yesterday, the active flow front had reached about half way down the Sciara, local guides reported. ...more
Today, tremor has decreased again a bit, but overflows remain active at least in the upper parts of the slope. Relatively large explosions and near-constant rockfalls on the Sciara continue during the whole time. [以下]
Lava overflow on the Sciara del Fuoco (INGV thermal webcam)
Current seismogram from Telica volcano (TELN station INETER)
Stromboli (Eolian Islands, Italy): After decreasing a bit yesterday, the overflow of lava from the NE vents has gained in strength this morning again, accompanied by constant rockfalls, relatively strong explosions and higher tremor. ...more
Tolbachik (Kamchatka): KVER reports no change in the ongoing eruption of the volcano and ongoing high tremor values at levels similar to the past weeks. Recent field reports however suggest that the eruption continues its slowly declining trend and might actually be ending soon. [以下]
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