Eruption news from Cleveland volcano:
Cleveland volcano (Aleutian Islands, Alaska): new lava dome growing in summit crater
Monday Oct 02, 2017 22:54 PM | DOOR: T
Thermal signal from Cleveland showing a moderate anomaly during the past days (Mirova)A new lava dome is growing in the summit crater of the volcano. According to the Alaska Volcano Observatory (AVO) the new phase of lava effusion probably began on 30 September and is continuing at slow rate.
As of yesterday, the surface of the dome was around 4,200 square meters. A moderate thermal heat source can be detected on satellite data as well.
from the AVO report
"Lava effusion is typically confined to the summit crater at Cleveland, with the last significant lava flow (that extended to the ocean) occurring in 2001. The lava domes that have been erupted since 2001 have all been destroyed by explosive activity within weeks to months after lava effusion.
These explosions typically produce relatively small volcanic ash clouds that dissipate within hours, however more significant ash emissions are possible. There is no way to predict how long this lava dome will grow, or when it might be destroyed by an explosion. No significant activity related to lava effusion observed in seismic data (from the limited network on Cleveland) and no explosive activity detected in infrasound data over the past day." (AVO)
Koppelingen / Bronnen:
Koppelingen / Bronnen:
- ALASKA VOLCANO OBSERVATORY DAILY UPDATE (AVO)
Tuesday, Sep 26, 2017
The Alaska Volcano Observatory (AVO) reported "a moderate, 2-minute-long eruption occurred at the volcano beginning at 17:47 September 25 AKDT (01:47 September 26 UTC)." ... [meer...]
Tuesday, Aug 22, 2017
A moderate, 1-minute-long eruption occurred at 10:43 AKDT (18:43 UTC) on 22 August. The explosion was detected by seismic and infrasound (air pressure) sensors. [meer...]
Wednesday, Jul 05, 2017
A moderate explosive eruption occurred yesterday (4 July) at the volcano at 03:19 local time (11:19 UTC), the Alaska Volcano Observatory (AVO) reported. ... [meer...]
Friday, Jun 23, 2017
No unusual activity has occurred at the volcano recently, but the lava dome in the summit crater continues to be active. Minor steaming can be occasionally seen and satellite data continue to detect a weak thermal anomaly. ... [meer...]
Wednesday, May 17, 2017
A small explosion occurred from the volcano last night at 19:17 local time (03:17 UTC this morning), the Alaska Volcano Observatory (AVO) reported. ... [meer...]