To: Doug R who wrote (368 ) 5/18/2020 7:24:29 PM From: Doug R 1 RecommendationRecommended By Hawkmoon
Read Replies (2) | Respond to of 6347 The Lo' ihi Seamount has calmed from recent activity. VIDEO But quakes deep under Pahala continue Note the depth of the highlighted quake. They are all down there. This diagram shows the Kilauea summit and Southeast Rift Zone, down to the reservoir but does not include the Mauna Loa conduit shown in the next diagram. Leilani Estates and other inhabited areas are,and/or were further to the right along there. Pahala is below the Southwest Rift Zone. Lo'ihi is likely also fed from the same deep reservoir as the summit reservoirs of Mauna Loa and Kilauea. That deep reservoir is mostly about 20 to 30 miles beneath Pahala. Deep Pahala quakes also occurred in swarms during the Kilauea eruption. Temperatures of the lava at "Fissure 8" were described as "mantle temperatures" by the USGS. Hotter than just that from the drained summit lake. When the deep reservoir gets busy, there's more than likely an eruption around somewhere. Lo'ihi would be my guess. "The research offers the first plausible model that can explain both the opposing long-term eruptive patterns at Mauna Loa and Kilauea—when one is active the other is quiet—as well as the episode in 2003-2007 when GPS records showed that each bulged notably due to the pressure of rising magma. The study was conducted by scientists at Rice University, the University of Hawaii, the U.S. Geological Survey (USGS) and the Carnegie Institution of Washington.""We know both volcanoes are fed by the same hot spot, and over the past decade we've observed simultaneous inflation, which we interpret to be the consequence of increased pressure of the magma source that feeds them," said lead author Helge Gonnermann, assistant professor of Earth science at Rice University. "We also know there are subtle chemical differences in the lava that each erupts, which means each has its own plumbing that draws magma from different locations of this deep source. bigislandnow.com