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January 30, 1997 eruptive event on Kilauea Volcano, Hawaii, as monitored by continuous GPS
Author(s) -
Owen Susan,
Segall Paul,
Lisowski Michael,
Miklius Asta,
Murray Mark,
Bevis Michael,
Foster James
Publication year - 2000
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/1999gl008454
Subject(s) - geology , rift zone , volcano , lava , rift , seismology , lateral eruption , global positioning system , intrusion , effusive eruption , phreatic eruption , magma , geochemistry , explosive eruption , tectonics , telecommunications , computer science
A continuous Global Positioning System (GPS) network on Kilauea Volcano captured the most recent fissure eruption in Kilauea's East Rift Zone (ERZ) in unprecedented spatial and temporal detail. The short eruption drained the lava pond at Puèu Oèo, leading to a two month long pause in its on‐going eruption. Models of the GPS data indicate that the intrusion's bottom edge extended to only 2.4 km. Continuous GPS data reveal rift opening 8 hours prior to the eruption. Absence of precursory summit inflation rules out magma storage overpressurization as the eruption's cause. We infer that stresses in the shallow rift created by the continued deep rift dilation and slip on the south flank décollement caused the rift intrusion.