Volcano Reports

AVO Pavlof YELLOW/ADVISORY - Low-level seismic tremor; cloudy conditions in satellite and webcams

USGS Volcano Current Alerts - Sat, 05/25/2019 - 17:34
May 25, 2019 20:29 - Low-level seismic tremor continues at Pavlof but has declined since last week. Clouds obscured views of the summit in webcam and satellite images over the last day. The level of unrest at Pavlof can change quickly and the progression to eruptive activity can occur with little or no warning. We continue to monitor Pavlof closely and will provide any new information about the status of the volcano when or if it becomes available.
Categories: Volcano Reports

AVO Cleveland YELLOW/ADVISORY - Cleveland remains restless; cloudy conditions viewed in satellite data

USGS Volcano Current Alerts - Sat, 05/25/2019 - 17:34
May 25, 2019 20:29 - No seismic or infrasound activity was detected in regional geophysical data. Clouds obscured views of the summit in all satellite images over the last day. Additional episodes of lava effusion and explosions are likely and will occur without advance warning. Explosions from Cleveland are normally short duration and only present a hazard to aviation in the immediate vicinity of the volcano. Larger explosions that present a more widespread hazard to aviation are possible, but are less likely and occur less frequently. Local seismic and infrasound data at Cleveland ...
Categories: Volcano Reports

AVO Cleveland YELLOW/ADVISORY - Unrest continues. No eruptive activity detected over the past week.

USGS Volcano Current Alerts - Fri, 05/24/2019 - 16:34
May 24, 2019 21:34 - No eruptive activity was detected in regional seismic or infrasound data over the past week. Elevated surface temperatures were observed during the past week, but no new lava effusion or changes in the summit vent have been detected in satellite data. There has been no evidence of dome growth or changes within the summit crater since early March 2019. Additional episodes of lava effusion and explosions are likely and will occur without advance warning. The most recent explosion of Cleveland occurred on January 9, 2019. These explosions are normally short duration and ...
Categories: Volcano Reports

AVO Pavlof YELLOW/ADVISORY - Low-level unrest with seismic tremor, steam emissions, and warm surface temperatures

USGS Volcano Current Alerts - Fri, 05/24/2019 - 16:34
May 24, 2019 21:34 - Seismic tremor has continued at low levels over the last week at Pavlof. Clear web camera images usually showed a steam plume from the summit of Pavlof, and clear satellite images indicated warm surface temperatures in the summit crater. Steam emissions and warm surface temperatures are common at Pavlof, but the added observation of seismic tremor indicates an increase in activity above background. Ash emissions and lava fountaining at the volcano's summit are possible and could occur with only subtle changes in the level of seismic activity. Pavlof is one of the ...
Categories: Volcano Reports

CVO Cascade Range GREEN/NORMAL - All volcanoes are at normal levels.

USGS Volcano Current Alerts - Fri, 05/24/2019 - 16:34
May 24, 2019 21:28 - Activity Update: All volcanoes in the Cascade Range of Oregon and Washington are at normal background levels of activity. These include Mount Baker, Glacier Peak, Mount Rainier, Mount St. Helens, and Mount Adams in Washington State; and Mount Hood, Mount Jefferson, Three Sisters, Newberry, and Crater Lake in Oregon. Recent Observations: Monitoring systems indicate that activity at Cascade Range volcanoes remained at background levels throughout the week.
Categories: Volcano Reports

AVO Pavlof YELLOW/ADVISORY - Low-level seismic tremor; small steam plume in clear webcam images

USGS Volcano Current Alerts - Thu, 05/23/2019 - 17:37
May 23, 2019 20:39 - Low-level seismic tremor continues at Pavlof but has declined since last week. A small steam plume was observed from the summit in clear webcam images last night and this morning. The level of unrest at Pavlof can change quickly and the progression to eruptive activity can occur with little or no warning. We continue to monitor Pavlof closely and will provide any new information about the status of the volcano when or if it becomes available.
Categories: Volcano Reports

AVO Cleveland YELLOW/ADVISORY - Cleveland remains restless; elevated surface temperatures in satellite data

USGS Volcano Current Alerts - Thu, 05/23/2019 - 17:37
May 23, 2019 20:39 - No seismic or infrasound activity was detected in regional geophysical data. Elevated surface temperatures were detected in satellite images over the last day. Additional episodes of lava effusion and explosions are likely and will occur without advance warning. Explosions from Cleveland are normally short duration and only present a hazard to aviation in the immediate vicinity of the volcano. Larger explosions that present a more widespread hazard to aviation are possible, but are less likely and occur less frequently. Local seismic and infrasound data at Cleveland ...
Categories: Volcano Reports

AVO Pavlof YELLOW/ADVISORY - Low-level seismic tremor; cloudy conditions in webcam and satellite images

USGS Volcano Current Alerts - Wed, 05/22/2019 - 16:35
May 22, 2019 19:14 - Low-level seismic tremor continues at Pavlof but has declined since last week. Webcam and satellite images were consistently cloudy in the last day. The level of unrest at Pavlof can change quickly and the progression to eruptive activity can occur with little or no warning. We continue to monitor Pavlof closely and will provide any new information about the status of the volcano when or if it becomes available.
Categories: Volcano Reports

AVO Cleveland YELLOW/ADVISORY - Cleveland remains restless; elevated surface temperatures in satellite data

USGS Volcano Current Alerts - Wed, 05/22/2019 - 16:35
May 22, 2019 19:14 - No seismic or infrasound activity was detected in regional geophysical data. Elevated surface temperatures were detected in an overnight satellite image. Additional episodes of lava effusion and explosions are likely and will occur without advance warning. Explosions from Cleveland are normally short duration and only present a hazard to aviation in the immediate vicinity of the volcano. Larger explosions that present a more widespread hazard to aviation are possible, but are less likely and occur less frequently. Local seismic and infrasound data at Cleveland have ...
Categories: Volcano Reports

AVO Pavlof YELLOW/ADVISORY - Low-level seismic tremor; cloudy conditions in webcam and satellite images

USGS Volcano Current Alerts - Tue, 05/21/2019 - 15:34
May 21, 2019 20:03 - Low-level seismic tremor continues at Pavlof but has declined since last week. Webcam and satellite images were consistently cloudy in the last day. The level of unrest at Pavlof can change quickly and the progression to eruptive activity can occur with little or no warning. We continue to monitor Pavlof closely and will provide any new information about the status of the volcano when or if it becomes available.
Categories: Volcano Reports

AVO Cleveland YELLOW/ADVISORY - Cleveland remains restless; no activity detected in geophysical or satellite data

USGS Volcano Current Alerts - Tue, 05/21/2019 - 15:34
May 21, 2019 20:03 - No seismic or infrasound activity was detected in regional geophysical data. The summit of the volcano was covered by clouds in all satellite images over over the past day. Additional episodes of lava effusion and explosions are likely and will occur without advance warning. Explosions from Cleveland are normally short duration and only present a hazard to aviation in the immediate vicinity of the volcano. Larger explosions that present a more widespread hazard to aviation are possible, but are less likely and occur less frequently. Local seismic and infrasound ...
Categories: Volcano Reports

HVO Kilauea GREEN/NORMAL - Low activity levels; no lava at the surface, modest inflation of summit magma reservoir.

USGS Volcano Current Alerts - Tue, 05/21/2019 - 15:34
May 21, 2019 19:22 - Activity Summary: Kīlauea Volcano is not erupting. Monitoring data over the past nine months have shown relatively low rates of seismicity, deformation, and sulfur dioxide emissions at the summit and East Rift Zone, including the area of the 2018 eruption. As of March 26, Kīlauea Volcano is at NORMAL/GREEN. For definitions of USGS Volcano Alert Levels and Aviation Color Codes, see: https://volcanoes.usgs.gov/vhp/about_alerts.html Despite this classification, Kīlauea remains an active volcano, and it will erupt again. Although we expect clear signs prior to a ...
Categories: Volcano Reports

AVO Cleveland YELLOW/ADVISORY - Cleveland remains restless; elevated surface temperatures in satellite data

USGS Volcano Current Alerts - Mon, 05/20/2019 - 15:34
May 20, 2019 20:16 - No seismic or infrasound activity was detected in regional geophysical data. Elevated surface temperatures at the summit of the volcano were observed in satellite data over the past day, indicating continued low-level unrest. Additional episodes of lava effusion and explosions are likely and will occur without advance warning. Explosions from Cleveland are normally short duration and only present a hazard to aviation in the immediate vicinity of the volcano. Larger explosions that present a more widespread hazard to aviation are possible, but are less likely and occur ...
Categories: Volcano Reports

AVO Pavlof YELLOW/ADVISORY - Low-level seismic tremor; steam plume observed in webcam images

USGS Volcano Current Alerts - Mon, 05/20/2019 - 15:34
May 20, 2019 20:16 - Low-level seismic tremor continues at Pavlof but has declined since last week. Webcam images shows a steam plume from the summit of the volcano when viewing conditions are good. Steam emissions and warm surface temperatures are common at Pavlof, but the added observation of seismic tremor indicates an increase in activity above background. The level of unrest at Pavlof can change quickly and the progression to eruptive activity can occur with little or no warning. We continue to monitor Pavlof closely and will provide any new information about the status of the ...
Categories: Volcano Reports

AVO Cleveland YELLOW/ADVISORY - Cleveland remains restless;no activity observed in cloudy satellite views

USGS Volcano Current Alerts - Sun, 05/19/2019 - 15:36
May 19, 2019 20:33 - No seismic or infrasound activity was detected in regional geophysical data. No activity was observed in mostly cloudy satellite images. Additional episodes of lava effusion and explosions are likely and will occur without advance warning. Explosions from Cleveland are normally short duration and only present a hazard to aviation in the immediate vicinity of the volcano. Larger explosions that present a more widespread hazard to aviation are possible, but are less likely and occur less frequently. Local seismic and infrasound data at Cleveland have been unavailable ...
Categories: Volcano Reports

AVO Pavlof YELLOW/ADVISORY - Low-level seismic tremor; steam plume; warm surface temperatures

USGS Volcano Current Alerts - Sun, 05/19/2019 - 15:36
May 19, 2019 20:33 - Low-level seismic tremor continues at Pavlof but has declined over the past few days. Webcam images shows a steam plume from the summit of the volcano when viewing conditions are good, and satellite data continue to show slightly elevated surface temperatures. Steam emissions and warm surface temperatures are common at Pavlof, but the added observation of seismic tremor indicates an increase in activity above background. The level of unrest at Pavlof can change quickly and the progression to eruptive activity can occur with little or no warning. We continue to monitor ...
Categories: Volcano Reports

AVO Cleveland YELLOW/ADVISORY - Cleveland remains restless; elevated surface temperatures in satellite images.

USGS Volcano Current Alerts - Sat, 05/18/2019 - 18:34
May 18, 2019 20:26 - No seismic or infrasound activity was detected in regional geophysical data. Elevated surface temperatures at the summit of the volcano were observed in satellite data over the past day, indicating continued low-level unrest. Additional episodes of lava effusion and explosions are likely and will occur without advance warning. Explosions from Cleveland are normally short duration and only present a hazard to aviation in the immediate vicinity of the volcano. Larger explosions that present a more widespread hazard to aviation are possible, but are less likely and occur ...
Categories: Volcano Reports

AVO Pavlof YELLOW/ADVISORY - Low level seismic tremor, steam emissions, and warm surface temperatures

USGS Volcano Current Alerts - Sat, 05/18/2019 - 18:34
May 18, 2019 20:26 - Low-level seismic tremor continues at Pavlof. A relatively robust steam plume from the summit of the volcano was visible in webcam images this morning, and satellite data from overnight recorded elevated surface temperatures. Steam emissions and warm surface temperatures are common at Pavlof, but the added observation of seismic tremor indicates an increase in activity above background. The level of unrest at Pavlof can change quickly and the progression to eruptive activity can occur with little or no warning. We continue to monitor Pavlof closely and will provide ...
Categories: Volcano Reports

AVO Cleveland YELLOW/ADVISORY - Unrest continues. No eruptive activity detected over the past week.

USGS Volcano Current Alerts - Fri, 05/17/2019 - 18:32
May 17, 2019 22:26 - No eruptive activity was detected in regional seismic or infrasound data over the past week. Elevated surface temperatures were observed during the past week, but no new lava effusion or changes in the summit vent have been detected in satellite data. There has been no evidence of dome growth or changes within the summit crater since early March 2019. Additional episodes of lava effusion and explosions are likely and will occur without advance warning. The most recent explosion of Cleveland occurred on January 9, 2019. These explosions are normally short duration and ...
Categories: Volcano Reports

AVO Pavlof YELLOW/ADVISORY - Low-level unrest with seismic tremor, steam emissions, and warm surface temperatures

USGS Volcano Current Alerts - Fri, 05/17/2019 - 18:32
May 17, 2019 22:26 - Observation of low-frequency seismic tremor at Pavlof during the past week prompted an increase in the Aviation Color Code and Alert Level to YELLOW/ADVISORY. Seismic tremor continues at low levels. Web camera images have shown a relatively robust steam plume from the summit of Pavlof, and satellite images indicated warm surface temperatures. Steam emissions and warm surface temperatures are common at Pavlof, but the added observation of seismic tremor indicates an increase in activity above background. Ash emissions and lava fountaining at the volcano's summit are ...
Categories: Volcano Reports

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