Seismicity associated with dome growth and collapse at the Soufriere Hills Volcano, Montserrat
Geophysical Research Letters
By: A.D. Miller, R.C. Stewart, R.A. White, R. Luckett, B.J. Baptie, W. P. Aspinall, J.L. Latchman, L.L. Lynch, and B. Voight
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Abstract
Varied seismicity has accompanied growth and collapse of the lava dome of the Soufriere Hills Volcano, Montserrat. Earthquakes have been classified as either volcano-tectonic, long-period or hybrid, and daily variations in the numbers of events have mapped changes in the style of eruption. Repetitive hybrid earthquakes were common during the first months of dome growth. In July 1996 the style of seismicity changed and regular short-lived hybrid earthquake swarms became common. This change was probably caused by an increase in the magma flux. Earthquake swarms have preceded almost all major dome collapses, and have accompanied cyclical deformation, thought to be due to a built-up of pressure in the upper conduit which is later released by magma moving into the dome.Varied seismicity has accompanied growth and collapse of the lava dome of the Soufriere Hills Volcano, Montserrat. Earthquakes have been classified as either volcano-tectonic, long-period or hybrid, and daily variations in the numbers of events have mapped changes in the style of eruption. Repetitive hybrid earthquakes were common during the first months of dome growth. In July 1996 the style of seismicity changed and regular, short-lived hybrid earthquake swarms became common. This change was probably caused by an increase in the magma flux. Earthquake swarms have preceded almost all major dome collapses, and have accompanied cyclical deformation, thought to be due to a build-up of pressure in the upper conduit which is later released by magma moving into the dome.
Suggested Citation
Miller, A., Stewart, R., White, R., Luckett, R., Baptie, B., Aspinall, W.P., Latchman, J., Lynch, L., Voight, B., 1998, Seismicity associated with dome growth and collapse at the Soufriere Hills Volcano, Montserrat: Geophysical Research Letters, v. 25, no. 18, p. 3401-3404, https://doi.org/10.1029/98GL01778.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Seismicity associated with dome growth and collapse at the Soufriere Hills Volcano, Montserrat |
| Series title | Geophysical Research Letters |
| DOI | 10.1029/98GL01778 |
| Volume | 25 |
| Issue | 18 |
| Publication Date | September 15, 1998 |
| Year Published | 1998 |
| Language | English |
| Publisher | American Geophysical Union |
| Publisher location | Washington, DC, United States |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Geophysical Research Letters |
| First page | 3401 |
| Last page | 3404 |