Volcano Reports

AVO Cleveland YELLOW/ADVISORY - Unrest continues. Seismicity is low. Weakly elevated surface temperatures observed.

USGS Volcano Current Alerts - Fri, 09/07/2018 - 16:31
Sep 7, 2018 20:11 - Weakly elevated surface temperatures in the summit crater of Cleveland volcano continue to be observed in satellite data during periods of clear weather, but are interpreted to be due to hot outgassing. This is typical of Cleveland volcano and indicates that low-level unrest continues. Satellite observations of the summit area show no significant change to a pancake-like lava flow that was emplaced in late June. No significant activity was detected in seismic and infrasound (pressure) sensor data throughout the week. Future explosive activity is likely and is ...
Categories: Volcano Reports

AVO Veniaminof ORANGE/WATCH - Unrest continues.Seismicty elevated. Thermal feature obsvered at summit.

USGS Volcano Current Alerts - Fri, 09/07/2018 - 16:31
Sep 7, 2018 20:11 - Modest eruptive activity continues at Veniaminof. Seismicity at the volcano picked up starting on Sunday, September 2, and AVO raised the Aviation Color Code and Alert Level to Yellow/Advisory the next day. On Tuesday, September 4, seismic activity increased and low-level pulsatory ash plumes from Veniaminof's summit were reported by residents of Perryville and observed in images from the FAA Perryville web camera. Thus AVO raised the Aviation Color Code and Alert Level to Orange/Watch on Tuesday. Pilot reports confirmed low altitude ash clouds (less than 10,00 ft asl) and ...
Categories: Volcano Reports

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

USGS Volcano Current Alerts - Fri, 09/07/2018 - 14:32
Sep 7, 2018 17:52 - 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: Seismic activity at Cascade Range volcanoes has remained at background levels this week. On Wednesday, field crews at Mount St. Helens maintained monitoring equipment and took gas measurements. Gas measurements were also taken last ...
Categories: Volcano Reports

AVO Great Sitkin YELLOW/ADVISORY - Unrest continues. No significant activity observed in seismic or satellite data.

USGS Volcano Current Alerts - Thu, 09/06/2018 - 14:30
Sep 6, 2018 19:20 - Low-level unrest continues at Great Sitkin Volcano. No significant activity was observed over the past day in seismic data or in cloudy satellite images. Great Sitkin Volcano is monitored with a local real-time seismic network, which will typically allow AVO to detect changes in unrest that may lead to an explosive eruption. Rapid detection of an ash-producing eruption would be accomplished using a combination of seismic, infrasound, lightning, and satellite data.
Categories: Volcano Reports

AVO Cleveland YELLOW/ADVISORY - No significant activity in seismic data. Elevated temperatures in satellite.

USGS Volcano Current Alerts - Thu, 09/06/2018 - 14:30
Sep 6, 2018 19:20 - Low-level unrest continues at Cleveland Volcano. Elevated surface temperatures were observed in satellite data acquired this morning. The webcam has been shrouded in heavy fog over the past day. No significant activity was detected in seismic or pressure sensor (infrasound) data. Cleveland volcano is monitored by only two seismic stations, which restricts AVO's ability to detect precursory unrest that may lead to an explosive eruption. Rapid detection of an ash-producing eruption may be possible using a combination of seismic, infrasound, lightning, and satellite ...
Categories: Volcano Reports

AVO Veniaminof ORANGE/WATCH - Seismicity remains elevated.Low-level ash emissions continuing.

USGS Volcano Current Alerts - Thu, 09/06/2018 - 14:30
Sep 6, 2018 19:20 - Unrest continues at Veniaminof. Seismic activity remains elevated. The FAA Perryville web camera continued to show frequent pulsatory low altitude ash plumes throughout the day yesterday. Weather clouds have degraded viewing conditions in the web camera this morning. Thermal features consistent with a hot vent area continue to be observed in satellite data. Veniaminof Volcano is monitored with a local real-time seismic network, which will typically allow AVO to detect changes in unrest that may lead to an explosive eruption. Rapid detection of an ash-producing ...
Categories: Volcano Reports

HVO Kilauea ORANGE/WATCH - Weak lava activity from Fissure 8; Summit quiet.

USGS Volcano Current Alerts - Thu, 09/06/2018 - 14:30
Sep 6, 2018 19:10 - Kīlauea summit and lower East Rift Zone On Kīlauea Volcano's lower East Rift Zone (LERZ), a small amount of incandescence was visible from the fissure 8 cone for a brief period overnight. Small lava flows have been observed within the fissure 8 cone, however none extend outside the walls of the cone. There is no change in overall activity from observations over the past several days. Seismicity and ground deformation remain low at the summit of Kīlauea Volcano. Earthquakes activity continues on faults located on Kīlauea's South Flank; these are aftershocks of ...
Categories: Volcano Reports

HVO Kilauea ORANGE/WATCH - Weak lava activity from Fissure 8; Summit quiet.

USGS Volcano Current Alerts - Wed, 09/05/2018 - 14:30
Sep 5, 2018 19:25 - Kīlauea summit and lower East Rift Zone Seismicity remains low and ground deformation is negligible at the summit of Kīlauea Volcano. A magnitude-3.1 earthquake that occurred at 5:31AM HST this morning was located below Kīlauea's South Flank and is likely an aftershock of the magnitude-6.9 earthquake from early May. On the volcano's lower East Rift Zone (LERZ), no incandescence was visible on the fissure 8 spillway overnight. Images from the UAS (drone) crew showed that weak lava activity continues in the fissure 8 cone as of yesterday afternoon, with no lava ...
Categories: Volcano Reports

AVO Great Sitkin YELLOW/ADVISORY - Unrest continues. No significant activity observed in seismic or satellite data.

USGS Volcano Current Alerts - Wed, 09/05/2018 - 14:30
Sep 5, 2018 18:55 - Low-level unrest continues at Great Sitkin Volcano. No significant activity was observed over the past day in seismic data or in partly cloudy satellite images. Great Sitkin Volcano is monitored with a local real-time seismic network, which will typically allow AVO to detect changes in unrest that may lead to an explosive eruption. Rapid detection of an ash-producing eruption would be accomplished using a combination of seismic, infrasound, lightning, and satellite data.
Categories: Volcano Reports

AVO Cleveland YELLOW/ADVISORY - No significant activity in seismic data. Weak elevated temperatures in satellite.

USGS Volcano Current Alerts - Wed, 09/05/2018 - 14:30
Sep 5, 2018 18:55 - Low-level unrest continues at Cleveland Volcano. Weakly elevated surface temperatures were observed in one high resolution satellite image acquired over the past day. Partial views of the volcano in the webcam show no activity. No significant activity was detected in seismic or pressure sensor (infrasound) data over the past day. Cleveland volcano is monitored by only two seismic stations, which restricts AVO's ability to detect precursory unrest that may lead to an explosive eruption. Rapid detection of an ash-producing eruption may be possible using a combination of ...
Categories: Volcano Reports

AVO Veniaminof ORANGE/WATCH - Seismicity remains elevated.Low-level ash emissions observed.

USGS Volcano Current Alerts - Wed, 09/05/2018 - 14:30
Sep 5, 2018 18:55 - Unrest continues at Veniaminof. Seismic activity remains elevated. The FAA Perryville web camera showed frequent pulsatory low altitude ash plumes throughout the day yesterday and continuing this morning. A pilot report from this morning indicated a volcanic cloud from Veniaminof at an altitude less than10,000 ft asl and a small amount of ash deposited on the ice field. Small thermal features consistent with a hot vent area were observed in satellite data from the past day. Veniaminof Volcano is monitored with a local real-time seismic network, which will ...
Categories: Volcano Reports

YVO Yellowstone GREEN/NORMAL - YVO Monthly Update: normal earthquake rates, caldera subsidence, Norris uplift

USGS Volcano Current Alerts - Tue, 09/04/2018 - 22:30
Sep 5, 2018 02:27 - Recent work and news Steamboat geyser, in the Norris Geyser Basin, erupted three more times in August, on August 4, 22, and 27. Field work in the caldera area included geologic investigations to better understand the ages and characteristics of the numerous lava flows that erupted since the last caldera-forming event 631,000 years ago. In addition, the Hydrothermal Dynamics of Yellowstone Lake (HD-YLAKE; https://hdylake.org/) project, which involves a team of scientists from several institutions with major funding from the National Science Foundation, completed two ...
Categories: Volcano Reports

HVO Kilauea ORANGE/WATCH - Kīlauea's eruption lull continues. Minor lava activity in fissure 8 cone.

USGS Volcano Current Alerts - Tue, 09/04/2018 - 20:30
Sep 4, 2018 23:38 - Kīlauea summit and lower East Rift Zone Seismicity remains low and ground deformation is negligible at the summit of Kīlauea Volcano. Earthquakes, probably aftershocks of the magnitude-6.9 earthquake in early May, continue on South Flank faults. On the volcano's lower East Rift Zone (LERZ), the UAS crew confirmed that weak lava activity was present in the fissure 8 cone this morning with no lava extending outside the walls of the cone and no flows heading down the spillway. Sulfur dioxide emission rates at the summit, Puʻu ʻŌʻō, and LERZ are drastically ...
Categories: Volcano Reports

AVO Great Sitkin YELLOW/ADVISORY - Unrest continues. No significant activity observed in seismic or satellite data.

USGS Volcano Current Alerts - Tue, 09/04/2018 - 17:30
Sep 4, 2018 21:52 - Low-level unrest continues at Great Sitkin Volcano. No significant activity was observed over the past day in seismic data or in mostly cloudy satellite images. Great Sitkin Volcano is monitored with a local real-time seismic network, which will typically allow AVO to detect changes in unrest that may lead to an explosive eruption. Rapid detection of an ash-producing eruption would be accomplished using a combination of seismic, infrasound, lightning, and satellite data.
Categories: Volcano Reports

AVO Cleveland YELLOW/ADVISORY - No significant activity in seismic data. Elevated temperatures in satellite data.

USGS Volcano Current Alerts - Tue, 09/04/2018 - 17:30
Sep 4, 2018 21:52 - Low-level unrest continues at Cleveland Volcano. Moderately elevated surface temperatures were observed in satellite images acquired over the past day. Webcam views of the volcano were mostly obscured by clouds. No significant activity was detected in seismic or pressure sensor (infrasound) data over the past day. Cleveland volcano is monitored by only two seismic stations, which restricts AVO's ability to detect precursory unrest that may lead to an explosive eruption. Rapid detection of an ash-producing eruption may be possible using a combination of seismic, ...
Categories: Volcano Reports

AVO Veniaminof ORANGE/WATCH - Seismicity remains elevated.Low-level ash emissions observed in web camera.

USGS Volcano Current Alerts - Tue, 09/04/2018 - 17:30
Sep 4, 2018 21:52 - The aviation color code and alert level for Veniaminof Volcano were raised to ORANGE/WATCH earlier today. Seismic activity remains elevated at Veniaminof. Low-level ash emissions have been observed in web camera images from this morning and confirmed by observers in Perryville. Veniaminof Volcano is monitored with a local real-time seismic network, which will typically allow AVO to detect changes in unrest that may lead to an explosive eruption. Rapid detection of an ash-producing eruption would be accomplished using a combination of seismic, infrasound, lightning, ...
Categories: Volcano Reports

CALVO GREEN/NORMAL - Activity Update: Volcanoes monitored by CalVO show normal levels of background seismicity and ...

USGS Volcano Current Alerts - Mon, 09/03/2018 - 19:31
Aug 6, 2018 20:39 - Monitored CALIFORNIA VOLCANOES Current Volcano Alert Level: all NORMAL Current Aviation Color Code: all GREEN Activity Update: All volcanoes monitored by CalVO using telemetered, real-time sensor networks exhibit normal levels of background seismicity and deformation. Volcanoes monitored include Mount Shasta, Medicine Lake Volcano, Clear Lake Volcanic Field, Lassen Volcanic Center, Long Valley Volcanic Region, Coso Volcanic Field, Ubehebe Craters, and Salton Buttes. Observations for July 1, 2018 (0000h PST) through July 31, 2018 (2359h PDT): Mt Shasta: No ...
Categories: Volcano Reports

HVO Kilauea ORANGE/WATCH - Kīlauea's eruption lull continues. Minor lava activity reported in fissure 8 cone.

USGS Volcano Current Alerts - Mon, 09/03/2018 - 16:31
Sep 3, 2018 19:37 - Kīlauea summit and lower East Rift Zone Seismicity remains low and ground deformation is negligible at the summit of Kīlauea Volcano. Earthquakes, probably aftershocks of the magnitude-6.9 earthquake in early May, continue on South Flank faults. On the volcano's lower East Rift Zone (LERZ), the crew on this morning's overflight confirmed that weakly active lava continues to fill the deep crater in the fissure 8 cone with no lava extending outside the walls of the cone and no flows heading down the spillway. Other vents were steaming due to morning rains. ...
Categories: Volcano Reports

AVO Veniaminof YELLOW/ADVISORY - Increased seismicity over the past day and ongoing. No signs of eruptive activity.

USGS Volcano Current Alerts - Mon, 09/03/2018 - 14:31
Sep 3, 2018 19:29 - Seismic activity at Veniaminof, indicative of unrest, increased late last night and volcanic tremor is ongoing. Thus, AVO is rasing the Aviation Color Code to Yellow and the Volcano Alert Level to Advisory. There are, however, no signs of eruptive activity at this time.
Categories: Volcano Reports

AVO Great Sitkin YELLOW/ADVISORY - Unrest continues. No significant activity observed in seismic or satellite data.

USGS Volcano Current Alerts - Mon, 09/03/2018 - 13:31
Sep 3, 2018 17:48 - Low-level unrest continues at Great Sitkin Volcano. No significant activity was observed over the past day in seismic data or in cloudy satellite images. Great Sitkin Volcano is monitored with a local real-time seismic network, which will typically allow AVO to detect changes in unrest that may lead to an explosive eruption. Rapid detection of an ash-producing eruption would be accomplished using a combination of seismic, infrasound, lightning, and satellite data.
Categories: Volcano Reports

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