Ground deformation measurements at the Soufriere Hills volcano, Montserrat:II: Rapid static GPS measurements June 1996 June 1997

Shepherd, JB, Herd, RA, Jackson, P and Watts, R (1998) Ground deformation measurements at the Soufriere Hills volcano, Montserrat:II: Rapid static GPS measurements June 1996 June 1997. Geophysical Research Letters, 25 (18). pp. 3413-3416. ISSN 0094-8276

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Abstract

We describe measurements of ground deformation around the erupting Soufriere Hills volcano made between June 1996 and June 1997 using Rapid Static GPS. The measurements define a lateral displacement field which is approximately radially symmetrical about the growing dome. No significant sustained vertical displacements have been identified. Radial displacements have generally increased steadily during this period of observation. The rate of displacement decreases from 43 cm per year at a distance of 0.6 km from the centre of the dome to about 1 cm/year at a distance of 3.8 km. Strains within one km of the dome itself are greater than 10(-3). The rate of variation of strain with distance indicates a causative centre of pressure at a depth of not greater than 750 meters below the summit of the dome.

Item Type: Article
Faculty \ School: Faculty of Science > School of Environmental Sciences
University of East Anglia > Faculty of Science > Research Groups > Environmental Earth Sciences
University of East Anglia > Faculty of Science > Research Groups > Volcanoes@UEA
University of East Anglia > Faculty of Science > Research Groups > Geosciences and Natural Hazards
Depositing User: Pure Connector
Date Deposited: 01 Apr 2016 11:16
Last Modified: 25 Jul 2018 11:58
URI: https://ueaeprints.uea.ac.uk/id/eprint/58050
DOI: 10.1029/98GL01655

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