Gravity fluctuations induced by magma convection at Kīlauea Volcano, Hawai‘i

Research Article| September 01, 2012 Gravity fluctuations induced by magma convection at Kīlauea Volcano, Hawai'i Daniele Carbone; Daniele Carbone * 1Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Catania, Osservatorio Etneo, Catania 95125, Italy *E-mails: carbone@ct.ingv.it; mpoland@usgs.gov. Search for other works by this author on: GSW Google Scholar Michael P. Poland Michael P. Poland * 2U.S. Geological Survey, Hawaiian Volcano Observatory, PO Box 51, Hawaii National Park, Hawaii 96718-0051, USA *E-mails: carbone@ct.ingv.it; mpoland@usgs.gov. Search for other works by this author on: GSW Google Scholar Author and Article Information Daniele Carbone * 1Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Catania, Osservatorio Etneo, Catania 95125, Italy Michael P. Poland * 2U.S. Geological Survey, Hawaiian Volcano Observatory, PO Box 51, Hawaii National Park, Hawaii 96718-0051, USA *E-mails: carbone@ct.ingv.it; mpoland@usgs.gov. Publisher: Geological Society of America Received: 28 Nov 2011 Revision Received: 26 Mar 2012 Accepted: 28 Mar 2012 First Online: 09 Mar 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 © 2012 Geological Society of America Geology (2012) 40 (9): 803–806. https://doi.org/10.1130/G33060.1 Article history Received: 28 Nov 2011 Revision Received: 26 Mar 2012 Accepted: 28 Mar 2012 First Online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Daniele Carbone, Michael P. Poland; Gravity fluctuations induced by magma convection at Kīlauea Volcano, Hawai'i. Geology 2012;; 40 (9): 803–806. doi: https://doi.org/10.1130/G33060.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Convection in magma chambers is thought to play a key role in the activity of persistently active volcanoes, but has only been inferred indirectly from geochemical observations or simulated numerically. Continuous microgravity measurements, which track changes in subsurface mass distribution over time, provide a potential method for characterizing convection in magma reservoirs. We recorded gravity oscillations with a period of ∼150 s at two continuous gravity stations at the summit of Kīlauea Volcano, Hawai'i. The oscillations are not related to inertial accelerations caused by seismic activity, but instead indicate variations in subsurface mass. Source modeling suggests that the oscillations are caused by density inversions in a magma reservoir located ∼1 km beneath the east margin of Halema'uma'u Crater in Kīlauea Caldera—a location of known magma storage. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.