12/06/2025
Hawaiian volcano and Hubbard Glacier Alaskan earthquake update: The north vent began pushing lava energy hard yesterday with splatter until it overflowed in Hawai'i National Volcanoes park. The lava is estimated between 1000 and 1200 feet or 300 plus meters. There was a triple fountain earlier this morning, a double vent from the north cone and one from the south vent. There is a tremendous amount of pressure building and releasing. The big island on the south rim of the Halema'uma'u crater at the summit of Kilauea volcano. This is the USGS Episode 38 that began this morning at 8:45am Hawai'i time.
Kilauea USGS Volcanoes lost their V3 camera to lava flow at its south rim of the crater location. IT was buried by tephra from the lava fountain about 9:55am Hawai'i time on December 6 during episode 38.
7.0 significant earthquake 10km depth: The tectonics of the Pacific margin of North America between Vancouver Island and south-central Alaska are dominated by the northwest motion of the Pacific plate with respect to the North America plate at a velocity of approximately 50 mm/yr. In the south of this mapped region, convergence between the northern extent of the Juan de Fuca plate (also known as the Explorer microplate) and North America plate dominate. North from the Explorer, Pacific, and North America plate triple junction, Pacific: North America motion is accommodated along the ~650-km-long Queen Charlotte fault system. Offshore of Haida Gwaii and to the southwest, the obliquity of the Pacific: North America plate motion vector creates a transpressional regime, and a complex mixture of strike-slip and convergent (under thrusting) tectonics. North of the Haida Gwaii islands, plate motion is roughly parallel to the plate boundary, resulting in almost pure dextral strike-slip motion along the Queen Charlotte fault. To the north, the Queen Charlotte fault splits into multiple structures, continuing offshore of southeastern Alaska as the Fairweather fault, and branching east into the Chatham Strait and Denali faults through the interior of Alaska. The plate boundary north and west of the Fairweather fault ultimately continues as the Alaska-Aleutians subduction zone, where Pacific plate lithosphere subducts beneath the North America plate at the Aleutians Trench. The transition is complex, and involves intraplate structures such as the Transition fault. The Pacific margin offshore British Columbia is one of the most active seismic zones in North America and has hosted a number of large earthquakes historically.
