Volcano Updates
The USGS Hawaiian Volcano Observatory issues Volcano Updates for Tutuila Island as activity warrants.
HAWAIIAN VOLCANO OBSERVATORY MONTHLY UPDATE
U.S. Geological Survey
Thursday, February 5, 2026, 5:00 PM HST (Friday, February 6, 2026, 03:00 UTC)
TUTUILA ISLAND (VNUM #244020)
14°17'42" S 170°42' W, Summit Elevation 2142 ft (653 m)
Current Volcano Alert Level: NORMAL
Current Aviation Color Code: GREEN
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 greater in the vicinity of the volcano. Several residents across the American Samoa islands reported feeling shaking on the evening of January 20th, which was due to a distant earthquake on the Tonga Trench (USGS National Earthquake Information Center).
Background: Tutuila Island is an elongated and eroded group of five Pliocene-to-Pleistocene-aged volcanoes constructed along two or three rifts trending south-southwest to north-northeast. The Leone Volcanics, in the southernmost part of the island, represent the youngest eruption deposits. Eruptions occurred during the Holocene (less than 11,650 years ago) along a 5-kilometer (3-mile) north-to-south trending fissure, forming a group of initially submarine tuff cones and subsequent subaerial cinder cones that produced fresh-looking pāhoehoe lava flows. An ash layer overlying a cultural deposit in the southwestern part of the island was radiocarbon dated at 440 ± 200 CE (Addison et al., 2006). From: https://volcano.si.edu/volcano.cfm?vn=244020.
More Information: https://www.usgs.gov/volcanoes/tutuila-island
Additional Resources
- Volcano Alert Levels and Aviation Color Codes in Samoan: https://www.usgs.gov/media/files/volcano-aviation-codes-and-alert-levels-english-and-samoan
- Volcano Hazards in the Pacific U.S. Territories https://pubs.er.usgs.gov/publication/fs20193036
- NOAA National Weather Service Pago Pago https://www.weather.gov/ppg/
- American Samoa Government https://www.americansamoa.gov/
This notice contains volcanoes not displayed here: Ofu-Olosega (NORMAL/GREEN), Ta'u Island (NORMAL/GREEN).
The Hawaiian Volcano Observatory is one of five volcano observatories within the U.S. Geological Survey and is responsible for monitoring volcanoes and earthquakes in Hawaiʻi and American Samoa.
CONTACT INFORMATION:
Subscribe to these messages: https://volcanoes.usgs.gov/vns2/
Summary of volcanic hazards from eruptions: https://www.usgs.gov/observatories/hvo/hazards
Recent earthquakes in Hawaiʻi (map and list): https://www.usgs.gov/observatories/hvo
Explanation of Volcano Alert Levels and Aviation Color Codes: https://www.usgs.gov/programs/VHP/volcanic-alert-levels-characterize-conditions-us-volcanoes