January 30, 1997 eruptive event on Kilauea Volcano, Hawaii, as monitored by continuous GPS

Details January 30, 1997 eruptive event on Kilauea Volcano, Hawaii, as monitored by continuous GPS January 30, 1997 eruptive event on Kilauea Volcano, Hawaii, as monitored by continuous GPS

Sep 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000georl..27.2757o&link_type=abstract

Geophysical Research Letters, Volume 27, Issue 17, p. 2757-2760

Physics

25

Geodesy And Gravity: Space Geodetic Surveys, Volcanology: Eruption Mechanisms, Volcanology: Magma Migration, Volcanology: Instruments And Techniques

Scientific paper

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 Pu'u O'o, 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.

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