The Measurement of Crustal Deformation Related to Volcanic Activity at Kilauea Volcano, Hawaii

Kinoshita, W.T.; Swanson, Donald A.; Jackson, Dallas B.

doi:10.1016/b978-0-444-41141-9.50010-3

Cited by 34 publications

(14 citation statements)

References 14 publications

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“…The inflation of the Krafla area between subsidence events is interpreted as being caused by inflow of magma from below into a magma chamber at*shallow depth beneath the center of the caldera, analog to conditions at Kilauea, Hawaii [Decker, 1966;Fiske and Kinoshita, 1969;Kinoshita et al, 1974].…”

Section: Interpretation and Discussionmentioning

confidence: 99%

Rifting of the plate boundary in north Iceland 1975–1978

Björnsson¹,

Johnsen²,

Sigurdsson³

et al. 1979

J. Geophys. Res.

252

107

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A rifting episode started in 1975 on the accreting plate boundary in North Iceland after 100 years of quiescence. Horizontal extension of some 3 m has been observed in the Krafla caldera and the associated 80 km long fissure swarm. The rifting occurs periodically in short active pulses at a few months intervals. Between these active pulses, continuous inflation of 7–10 mm/day of the caldera is caused by 5 m3/s inflow of magma into a magma chamber at 3 km depth. The active pulses are caused by a sudden east‐west expansion of the fissure swarm and a contraction of zones outside the fissure swarm. Rapid flow of magma out of the magma chamber and into the fissures toward north or south is indicated. These pulses are accompanied by earthquake swarms and vertical ground movements of up to 2 m and sometimes also volcanic eruptions and formation of new fumaroles. The magma chamber below the Krafla caldera thus acts as a trigger for the plate movement along the constructive plate boundary in North Iceland.

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Section: Interpretation and Discussionmentioning

confidence: 99%

Rifting of the plate boundary in north Iceland 1975–1978

Björnsson¹,

Johnsen²,

Sigurdsson³

et al. 1979

J. Geophys. Res.

252

107

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“…The dry tilt network ICE adopted the dry tilt technique developed at the Hawaiian Volcano Observatory in the late 1960s (Kinoshita et al, 1974) and following studies (Sylvester, 1978;Yamashita 1981). The first 4 dry-tilt stations (A, B, C and D) were set up on the western flank of Arenal in October 1974 ( Fig.…”

Section: Description Of the Tilt Stations And Observationsmentioning

confidence: 99%

Continuous subsidence associated with the long-lasting eruption of Arenal Volcano (Costa Rica) observed by dry-tilt stations

Mora¹,

Lesage²,

Albino³

et al. 2013

Understanding Open-Vent Volcanism and Related Hazards

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Arenal volcano is a small (~1750 m a.s.l., ~10 km 3) stratovolcano that continuously erupted between July 1968 and October 2010. During this long-lasting eruption (over 42 years), a large volume of material-about 5.6 x 10 8 m 3 of dense rock equivalent-has been extruded and has produced a thick and extended lava field, mainly on the western flank of the edifice. Measurements of ground deformation obtained using a network of dry-tilt stations are presented for the period 1986-2000. They show a continuous subsidence of the volcano with maximal amplitude on the western side. The load effect of the lava field is calculated and explains the largest part of the observed tilts. Once the data are corrected by this load effect, pressure source models are not supported by the observations and by quality criteria on the models. Although the dry tilt data from Arenal volcano give limited constraint on the deformation models, they are representative of a long period of activity that cannot be recovered by other means. Moreover, the corresponding interpretative model is consistent with results obtained by geotechnical studies and modern ground deformation methods like InSAR.

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“…The horizontal distance measurements on Kilauea are routinely made with an AGA Model 8 Geodimeter1 , an electronic laserbeam instrument with a precision as used at HVO of about 2-3 parts per million, or 2-3 mm/km of line length. Methods of operation and data reduction are summarized by Kinoshita, Swanson, and Jackson (1974) and Swanson and Okamura (1975). Changes in line length for the periods bracketing the 1975 earthquake are summarized in figures 11 and 12; complete data for the trilateration measurements are on file at HVO.…”

Section: Horizontal Displacementsmentioning

confidence: 99%