Last Seven Days of U.S. Volcano Updates ( for CAP RSS feed)

Low-level eruptive activity continues. Slightly elevated surface temperatures in the summit crater were observed in satellite images over the past day. Web camera observations mostly obscured by clouds, but no activity observed in occasional clear images. No significant activity noted in seismic data. (Volcano Status Page)

Earthquakes continue to be recorded, but are decreasing in number and magnitude. Satellite images observations obscured by clouds over the past day. AVO has received no reports from pilots or mariners of any unusual activity. (Volcano Status Page)

No activity observed in satellite and web camera images during occasional periods of clear weather. No significant activity noted in seismic data. (Volcano Status Page)

Unrest continues at Cleveland. Elevated surface temperatures in the summit crater were observed in satellite images over the past day, and may be related to a slight increase in activity. No ash emissions or steam plumes observed. AVO has received no reports from pilots or mariners of any unusual activity. (Volcano Status Page)

Activity Summary: Kīlauea continued to erupt at its summit and within the East Rift Zone, and gas emissions remained elevated. There was no significant change in tilt recorded at the summit, and the lava lake level was relatively steady. At the middle East Rift Zone, lava flows continued to erupt from the northeast flank of Puʻu ʻŌʻō cone, spreading to the northeast. Recent Summit Observations: Summit tiltmeters recorded no significant change in tilt over the past 24 hours. The lava lake level fluctuated gently between about 30 and 35 m below the Overlook crater rim. Seismic tremor varied between hours-long periods of low tremor and tremor dropouts. Fifteen earthquakes were strong enough to be located beneath Kīlauea Volcano: 1 beneath ... (Volcano Status Page)

There were no significant changes during the month of June 2014. No earthquakes were located beneath Haleakalā Volcano. (Volcano Status Page)

No unusual seismicity or deformation was detected during the month of June 2014. Five earthquakes were located in the vicinity of the summit and northwest rift zone of Hualālai Volcano at depths greater than 13 km. (Volcano Status Page)

No unusual seismicity was detected during the month of May, 2014. Four earthquakes were located in the vicinity of Lōihi Volcano. (Volcano Status Page)

No unusual deformation or seismicity was detected during the month of June 2014. Four deep (> 13 km) and six shallower earthquakes were detected beneath the volcano. (Volcano Status Page)

No significant changes were recorded through May 2014. Seismicity: Seismicity continued to be elevated over the average rates of the past 25 years-12 shallow events below summit area, 6 events to the west of Mokuʻāweoweo Crater (<13 km), 5 events to the north of Mokuʻāweoweo Crater, 16 shallow events on the Upper Southwest Rift (Sulfur Cone), 4 shallow events on the Lower Southwest Rift, 2 shallow events on the NE Rift Zone. Deformation: GPS and tilt networks did not record any changes in deformation rates or patterns that were significantly above the error of the measurements during June. Southeasterly motion of the south flank continued. Gas: No significant changes in SO2, CO2 were recorded by the Mokuaweoweo gas and temperature monitors ... (Volcano Status Page)

Unrest continues at Cleveland. Elevated surface temperatures in the summit crater were observed in satellite images over the past day, and may be related to a slight increase in activity. No ash emissions or steam plumes observed. AVO has received no reports from pilots or mariners of any unusual activity. (Volcano Status Page)

Low-level eruptive activity continues. Elevated surface temperatures in the summit crater were observed in satellite images over the past day. Web camera observations obscured by clouds. No significant activity noted in seismic data. (Volcano Status Page)

Satellite and web camera observations obscured by clouds. No significant activity noted in seismic data. (Volcano Status Page)

Earthquakes continue to be recorded, but are decreasing in number and magnitude. Satellite images observations obscured by clouds over the past day. AVO has received no reports from pilots or mariners of any unusual activity. (Volcano Status Page)

Activity Summary: Kīlauea continued to erupt at its summit and within the East Rift Zone, and gas emissions remained elevated. The summit deflated gradually, and the lava lake level was relatively steady. At the middle East Rift Zone, lava flows continued to erupt from the northeast flank of Puʻu ʻŌʻō cone, spreading to the northeast. Puʻu ʻŌʻō's crater floor continued to subside. Recent Summit Observations: The summit deflated gradually over the past 24 hours. The lava lake level fluctuated gently between about 30 and 35 m below the Overlook crater rim in response to variations in the vigor of spattering on the lake surface. Seismic tremor was likewise variable, switching between hours-long periods of low tremor and tremor dropouts. Twelve earthquakes were ... (Volcano Status Page)

Low-level eruptive activity continues. Satellite and web camera observations obscured by clouds. No significant activity noted in seismic data. (Volcano Status Page)

Earthquakes continue to be recorded, but are decreasing in number and magnitude. Satellite images observations obscured by clouds over the past day. AVO has received no reports from pilots or mariners of any unusual activity. (Volcano Status Page)

Satellite and web camera observations obscured by clouds. No significant activity noted in seismic data. (Volcano Status Page)

Satellite observations obscured by clouds over the past day. AVO has received no reports from pilots or mariners of any unusual activity. (Volcano Status Page)

Activity Summary: Kīlauea continued to erupt at its summit and within the East Rift Zone, and gas emissions remained elevated. There was no significant change in tilt recorded at the summit, and the lava lake level was relatively steady. At the middle East Rift Zone, lava flows continued to erupt from the northeast flank of Puʻu ʻŌʻō cone, spreading to the northeast. Puʻu ʻŌʻō's crater floor continued to subside. Recent Summit Observations: Summit tiltmeters recorded weak oscillations in tilt with no significant change over the past 24 hours. The lava lake level fluctuated gently between about 30 and 35 m below the Overlook crater rim. These level changes were in response to variations in the amount of spattering on ... (Volcano Status Page)

Activity Update: All volcanoes in the Cascade Range of Oregon and Washington are at normal levels of background seismicity. 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: Activity at Cascade Range volcanoes has remained at background levels during the past week. Maintenance and repair work was performed at monitoring sites in and near Crater Lake. (Volcano Status Page)

Low-level eruptive activity continues. Elevated surface temperatures in the summit crater were observed in satellite data over the past week and increased on Friday. These observations are consistent with the eruption of lava in the summit crater, but have not been confirmed. No ash emissions identified in satellite data, but minor emissions of ash and steam in the immediate vicinity of the crater are possible. No significant change noted in seismic data. (Volcano Status Page)

Earthquakes continue to be recorded, but are decreasing in number and magnitude over the past several weeks. No activity observed in satellite data over the past week, and AVO has received no reports from pilots or mariners of any unusual activity. (Volcano Status Page)

No significant activity observed in satellite, seismic, and web camera data over the past week. (Volcano Status Page)


Activity Summary: Kīlauea continued to erupt at its summit and within the East Rift Zone, and gas emissions remained elevated. Summit inflation continued at a slowing pace, and the lava lake level held steady. At the middle East Rift Zone, lava flows continued to erupt from the northeast flank of Puʻu ʻŌʻō cone, spreading to the northeast. Recent Summit Observations: Summit inflation slowed through the day yesterday, but continued overnight. The lava lake circulated at a consistent level about 30 m below the Overlook crater rim. Seismic tremor was low and mostly steady, with a single 2-hour-long tremor dropout this morning. Five earthquakes were strong enough to be located beneath Kīlauea Volcano in the past 24 hours: 1 in the Southwest ... (Volcano Status Page)

Low-level unrest continued at Pagan Volcano throughout the past week. A steam and gas plume was visible in web camera and satellite images during periods of clear weather. Low-level seismic activity is ongoing. Volcanic gas from Pagan may be noticed downwind of the volcano as a distinctive sulfurous odor. Additional information about volcanic gas and vog can be found on the web at this address: http://hvo.wr.usgs.gov/hazards/FAQ_SO2-Vog-Ash/main.html Access to the island may be restricted by the CNMI government. Contact the EMO for the latest information. (Volcano Status Page)

Low-level eruptive activity continues. Elevated surface temperatures in the summit crater were observed in satellite images over the past day. No significant activity or change noted in seismic data. (Volcano Status Page)

The Semispochnoi earthquake swarm that began on June 9 continues, but is gradually diminishing in intensity. Nothing unusual was observed in partly cloudy satellite data today. AVO has received no reports from pilots or mariners of any unusual activity at Semisopochnoi. (Volcano Status Page)

No unusual activity was observed at Pavlof today in partly cloudy satellite and webcam images. Seismicity remains slightly above background. (Volcano Status Page)

No unusual activity was observed in partly cloudy satellite images today. AVO has received no other reports of activity. (Volcano Status Page)

Activity Summary: Kīlauea continued to erupt at its summit and within the East Rift Zone, and gas emissions remained elevated. Summit inflation continued, and the lava lake level rose in response. At the middle East Rift Zone, lava flows continued to erupt from the northeast flank of Puʻu ʻŌʻō cone, spreading to the northeast. Recent Summit Observations: Rapid summit inflation continued overnight, and the lava lake rose to between 30 and 35 m below the Overlook crater rim by sunrise this morning. Seismic tremor was low and steady. Twenty-one earthquakes were strong enough to be located beneath Kīlauea Volcano in the past 24 hours: 3 at the summit, 2 in the Southwest Rift Zone, 8 in the East Rift Zone, 7 on south flank faults, and 1 ... (Volcano Status Page)

Low-level eruptive activity continues. Elevated surface temperatures and typical steaming from the summit crater were observed in satellite images over the past day. No significant activity or change noted in seismic data. (Volcano Status Page)

The Semispochnoi earthquake swarm that began on June 9 continues, but is gradually diminishing in intensity. Nothing unusual was observed in partly cloudy satellite data today. AVO has received no reports from pilots or mariners of any unusual activity at Semisopochnoi. (Volcano Status Page)

No unusual activity was observed at Pavlof today in mostly cloudy satellite and webcam images. Seismicity remains slightly above background. (Volcano Status Page)

No unusual activity was observed in mostly cloudy satellite images today. AVO has received no other reports of activity. (Volcano Status Page)

Activity Summary: Kīlauea continued to erupt at its summit and within the East Rift Zone, and gas emissions remained elevated. Deflation at the summit switched to inflation, and the falling lava lake level within the Overlook crater began to rise in response. At the middle East Rift Zone, lava flows continued to erupt from the northeast flank of Puʻu ʻŌʻō cone, spreading to the north and northeast. Recent Summit Observations: The summit deflated until about 8 PM last night, when it began to rapidly inflate. The lava lake, which had reached a low of about 50 m below the Overlook crater rim yesterday, has since risen to between 40 and 45 m below the crater rim. Seismic tremor was low and mostly steady. Thirteen earthquakes were strong enough to ... (Volcano Status Page)

Low-level eruptive activity continues. Elevated surface temperatures in the summit crater were observed in satellite images over the past day, and typical steaming from the crater was observed in web camera data. No significant activity or change noted in seismic data. (Volcano Status Page)

The Semispochnoi earthquake swarm that began on June 9 continues. Nothing unusual was observed in partly cloudy satellite data today. AVO has received no reports from pilots or mariners of any unusual activity at Semisopochnoi. (Volcano Status Page)

No unusual activity was observed at Pavlof today in mostly cloudy satellite and webcam images. Seismicity remains slightly above background. (Volcano Status Page)

No unusual activity was observed in mostly cloudy satellite images today. AVO has received no other reports of activity. (Volcano Status Page)

Activity Summary: Kīlauea continued to erupt at its summit and within the East Rift Zone. Inflation at the summit switched to deflation, and the lava lake level within the Overlook crater dropped in response. At the middle East Rift Zone, lava flows continued to erupt from the northeast flank of Puʻu ʻŌʻō cone, spreading to the north. Gas emissions remained elevated. Recent Summit Observations: The summit inflated until late last night, when deflation started. The lava lake level began to drop with the onset of deflation, reaching an estimated 50 m below the Overlook crater rim by this morning. Seismic tremor was low but variable. Eight earthquakes were strong enough to be located beneath Kīlauea Volcano in the past 24 hours: 1 at the ... (Volcano Status Page)

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