Hazard Notification System (HANS) for Volcanoes
USGS Volcano Notice - DOI-USGS-HVO-2024-02-11T18:49:00+00:00
HAWAIIAN VOLCANO OBSERVATORY DAILY UPDATE
U.S. Geological Survey
Sunday, February 11, 2024, 9:32 AM HST (Sunday, February 11, 2024, 19:32 UTC)
KILAUEA (VNUM #332010)
19°25'16" N 155°17'13" W, Summit Elevation 4091 ft (1247 m)
Current Volcano Alert Level: ADVISORY
Current Aviation Color Code: YELLOW
Activity Summary: Kīlauea volcano is not erupting. Seismicity at the summit and along the Koa‘e fault system southwest of the summit continues following an intrusion of magma into the area over a week ago. The M5.7 earthquake near Pāhala on 9 February has not affected volcanic activity at Kīlauea.
Summit Observations: Seismicity beneath the summit and extending 5-7 miles (8-11 km) southwest of the caldera under the Koa‘e fault zone continues. Earthquake counts have been holding steady at 1–10 earthquakes per hour; dispersed widely from the summit to the southwest. There were approximately 42 earthquakes recorded across this region over the past 24 hours. Depths remain consistent, typically 1–5 km (0.6-3 mi) below the surface, and magnitudes have generally decreased to below M1.5.
Ground deformation has slowed with tiltmeters near Sand Hill and Uēkahuna bluff have recording little change (less than 2 microradians) in the past few days.
Sulfur dioxide (SO2) gas emission rates have remained low since October 2023. An SO2 emission rate of approximately 70 tonnes per day was recorded on January 17.
Rift Zone Observations: Seismicity in Kīlauea's upper East Rift Zone and Southwest Rift Zone remain low. No unusual activity has been noted along the middle and lower sections of Kīlauea's East Rift Zone. We continue to closely monitor both rift zones.
Measurements from continuous gas monitoring stations downwind of Puʻuʻōʻō in the middle East Rift Zone—the site of 1983–2018 eruptive activity—continue to be below detection limits for SO2, indicating that SO2 emissions Puʻuʻōʻō are negligible.
An Information Statement about the recent intrusion can be found here: USGS Volcano Notice - DOI-USGS-HVO-2024-02-09T05:11:03+00:00.
The overall decrease in seismicity and deformation suggests that this event is waning. However, renewed episodes of activity remain a possibility and an eruption could occur with little advanced warning.
A magnitude 5.7 earthquake occurred on Friday, 9 February approximately 2 km (1.25 mi) SE of Pāhala at a depth of 37 km (23 mi) below sea level. This was followed by a series of aftershocks that are expected to continue throughout today. Although widely felt across the Hawaiian Islands, the earthquake and aftershocks have not affected volcanic activity at Kīlauea. Information about this earthquake can be found in this USGS Volcano Notice - DOI-USGS-HVO-2024-02-09T21:01:08+00:00 and the USGS Earthquake Hazards Program website: https://earthquake.usgs.gov/earthquakes/eventpage/hv74103036/executive. HVO continues to monitor Kīlauea for any changes.
Please note that upgrades to the network are causing intermittent outages that are affecting public access to monitoring data. HVO maintains internal access to volcano monitoring data and will continue to report on volcanic activity. We apologize for any inconvenience during this dynamic time.
Hazard Analysis: Levels of volcanic gases (sulfur dioxide and carbon dioxide) can remain locally hazardous even when Kīlauea is not erupting. Local concentrations of sulfur dioxide (SO2) and/or hydrogen sulfide (H2S) may persist in downwind areas, and residents may notice odors of these gases occasionally. Significant hazards also remain around Halemaʻumaʻu from crater wall instability, ground cracking, and rockfalls that can be enhanced by earthquakes within the area closed to the public. For discussion of Kīlauea hazards, please see: https://www.usgs.gov/observatories/hawaiian-volcano-observatory/hazards.
- Hawaiʻi Volcanoes National Park visitor information: https://www.nps.gov/havo/index.htm
- Kīlauea activity summary also available by phone: (808) 967-8862
- Kīlauea webcam images: https://www.usgs.gov/volcanoes/kilauea/webcams
- Kīlauea photos/video: https://www.usgs.gov/volcanoes/kilauea/photo-and-video-chronology
- Kīlauea lava-flow maps: https://www.usgs.gov/volcanoes/kilauea/maps
- Kīlauea FAQs: https://www.usgs.gov/volcanoes/kilauea/faqs
- Kīlauea hazards discussion: https://www.usgs.gov/observatories/hawaiian-volcano-observatory/hazards
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.
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