USGS - Recent Volcano Activity

Recent Volcano Updates from the U.S. Geological Survey Volcano Hazards Program
  1. NMI Ahyi Seamount YELLOW/ADVISORY - Posible activity observed in pressure sensor.No unusual activity detected in ...

    Feb 5, 2023 06:57 - Unrest at Ahyi Seamount continues.  No unusual activity was detected in remote sensing data over Ahyi Seamount over the past day however, the data over the past day are too course to detect water discoloration.  Possible activity was detected in the pressure sensor data over past 24 hours.There are no local monitoring stations near Ahyi Seamount, which limits our ability to detect and characterize volcanic unrest there. We will continue to monitor available remote hydrophonic, seismic, and satellite data closely.
  2. HVO Kilauea ORANGE/WATCH - Kīlauea Volcano is erupting within Halemaʻumaʻu crater. The current condition is stable ...

    Feb 4, 2023 21:01 - Activity Summary: The summit eruption of Kīlauea Volcano, within Halemaʻumaʻu crater, continued over the past 24 hours. All recent eruptive activity has been confined to the crater. No significant changes have been observed at the summit or in either rift zone.Halemaʻumaʻu Lava Lake Observations: Eruption of lava in four locations of Halemaʻumaʻu crater floor continued over the past 24 hours. The eastern lake remains stable and activity within this lake remains about 25 acres in size.  The small southern lava fountain within the eastern lake is active ...
  3. AVO Great Sitkin ORANGE/WATCH - No activity observed in cloudy satellite views. Seismicity remains low.

    Feb 4, 2023 20:47 - No activity was observed at Great Sitkin in cloudy satellite data or web camera views from the past day. Seismicity remained low over the past 24 hours.Great Sitkin Volcano is monitored by local seismic and infrasound sensors, satellite data, web cameras, and regional infrasound and lightning networks.
  4. AVO Takawangha YELLOW/ADVISORY - Small earthquakes continue. No signs of eruptive activity.

    Feb 4, 2023 20:47 - A few small, local earthquakes were detected at Takawangha volcano over the past day. No signs of unrest were seen in cloudy satellite views of the volcano.Takawangha volcano is monitored by local seismic and infrasound sensors, satellite data, and regional infrasound and lightning networks.
  5. AVO Semisopochnoi ORANGE/WATCH - Seismicity remains slightly elevated. No activity observed in satellite data.

    Feb 4, 2023 20:47 - Seismicity remains slightly elevated with weak tremor observed over the past day.  No activity was observed in cloudy satellite views over the past day. Minor steam emissions observed in the occasional clear web camera view of the summit of the past day.Small eruptions producing minor ash deposits within the vicinity of the active north crater of Mount Young and ash clouds usually under 10,000 ft (3 km) above sea level have characterized the recent activity. Additional ash-producing events could occur again with little warning. Semisopochnoi volcano is monitored ...

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