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- Feed Preview Recent Volcano Observatory Activity Reports
AVO Great Sitkin ORANGE/WATCH - Slow eruption of lava continues. Occasional small earthquakes continue.
Apr 18, 2024 19:09 - The slow eruption of lava in the summit crater of Great Sitkin Volcano continues, with occasional small earthquakes recorded. Weakly elevated surface temperatures were observ...
HVO Kama'ehuakanaloa UNASSIGNED/UNASSIGNED - No activity of concern for Kamaʻehuakanaloa.
Apr 4, 2024 18:20 - No significant activity was detected at Kamaʻehuakanaloa volcano (formerly Lōʻihi Seamount) during the past month. Seismic activity remained low and was representative of b...
HVO Tutuila Island GREEN/NORMAL - No activity of concern for Tutuila Island
Apr 4, 2024 18:08 - No significant activity was detected at Tutuila Volcano during the past month. The USGS National Earthquake Information Center reported no earthquakes of magnitude 2.5 or grea...
HVO Ta'u Island GREEN/NORMAL - No activity of concern for Taʻū Island
Apr 4, 2024 18:08 - No significant activity was detected at Taʻū Volcano during the past month. The USGS National Earthquake Information Center reported no earthquakes of magnitude 2.5 or great...
HVO Ofu-Olosega GREEN/NORMAL - No activity of concern for Ofu-Olosega.
Apr 4, 2024 18:08 - No significant activity was detected at Ofu-Olosega Volcano during the past month. The USGS National Earthquake Information Center reported no earthquakes of magnitude 2.5 or ...
HVO Mauna Kea GREEN/NORMAL - No activity of concern for Mauna Kea.
Apr 4, 2024 18:20 - No significant activity was detected at Mauna Kea volcano during the past month. Seismic activity remained low, and was representative of background activity levels at the vol...
HVO Haleakala GREEN/NORMAL - No activity of concern for Haleakalā.
Apr 4, 2024 18:20 - No significant activity was detected at Haleakalā volcano during the past month. HVO seismometers recorded no earthquakes in the vicinity of the volcano. The continuously rec...
HVO Hualalai GREEN/NORMAL - No activity of concern for Hualālai.
Apr 4, 2024 18:20 - No significant activity was detected at Hualālai volcano during the past month. Seismic activity remained low, and was representative of background activity levels at the vol...
HVO Mauna Loa GREEN/NORMAL - No significant changes at Mauna Loa in the past month; inflation of the summit continues.
Apr 4, 2024 18:20 - Seismicity beneath Mauna Loa's summit and upper-elevation flanks has been relatively low over the past month; approximately 31 small-magnitude earthquakes (below M3.0) were de...
AVO Shishaldin YELLOW/ADVISORY - Weak seismicity detected over the past day.
Apr 18, 2024 19:09 - Unrest at Shishaldin Volcano continues, with occasional small earthquakes recorded over the past day. No activity was observed in mostly cloudy satellite and webcam views.The...
AVO Spurr GREEN/NORMAL - Conditions at Mount Spurr volcano have improved and AVO is receiving data from earthquake and ...
Apr 5, 2024 00:30 - Conditions at Mount Spurr volcano have improved and AVO is receiving data from earthquake monitoring stations and a remote web camera at the volcano 120 km (75 miles) west of ...
AVO Atka volcanic complex GREEN/NORMAL - Activity has returned to background levels; Aviation Color Code and Alert ...
Apr 9, 2024 15:34 - Volcanic activity at the Atka volcanic complex has decreased since a small explosion was detected from the summit crater of Korovin, one of several volcanoes there, on March 2...
NMI Ahyi Seamount UNASSIGNED/UNASSIGNED - Nothing noteworthy was observed in the vicinity of Ahyi seamount.
Apr 11, 2024 23:06 - No activity was observed in satellite views of the Ahyi Seamount area over the past week. Likewise, AVO received no definitive hydroacoustic detections of submarine volcanic ...
CVO Cascade Range GREEN/NORMAL - All volcanoes are at normal levels.
Apr 12, 2024 18:53 - Activity Update: All volcanoes in the Cascade Range of Oregon and Washington are at normal background activity levels. These include Mount Baker, Glacier Peak, Mount Rainier,...
CALVO GREEN/NORMAL - CA volcanoes were at normal background levels of seismicity and deformation during the past week.
Apr 16, 2024 14:53 - Monitored CALIFORNIA VOLCANOESCurrent Volcano Alert Level: all NORMALCurrent Aviation Color Code: all GREENActivity Update: All volcanoes monitored by CalVO show normal backg...
HVO Kilauea YELLOW/ADVISORY - Kīlauea volcano is not erupting. Slightly elevated seismicity observed at the summit.
Apr 16, 2024 21:13 - Activity Summary: Kīlauea volcano is not erupting. Rates of seismic activity increased beneath the summit over the past week. Seismicity coupled with low rates of deforma...
YVO Yellowstone GREEN/NORMAL - YVO Monthly Update: background seismicity and deformation
Apr 1, 2024 18:16 - Recent Work and NewsThere were no major eruptions of Steamboat Geyser during the month of March, although minor eruptions have been ongoing since the middle of the month, sugg...