Jürgen Neuberg

A series of low‐frequency earthquake swarms prior to a dome collapse on Soufrière Hills volcano, Montserrat, are investigated with the emphasis on event rate and amplitude behaviour. In a single swarm, the amplitudes of consecutive events tend to increase with time, while the rate of event occurrence accelerates initially and then decelerates toward the end of the swarm. However, when consecutive swarms are considered, the average event rates seem to follow the material failure law, and the time of the dome collapse can be successfully estimated using the inverse event rate. These patterns in amplitude and event rate are interpreted as fluctuations in magma ascent velocity, which result in both the generation of low‐frequency events as well as cyclic ground deformation accompanying the swarm activity.

Dome (geology)

10.1029/2008gl036837

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Citations (34)

Complex Seismic Sources for LP Events in Volcanic Environments: Model and Radiation Patterns

EGU General Assembly Conference Abstracts (2018)

Rodrigo Contreras-Arratia Jürgen Neuberg Andrew Hooper

Source

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The complex, static displacement of a very long period seismic signal observed at Soufrière Hills volcano, Montserrat, WI

Journal of Volcanology and Geothermal Research (2021)

Dinko Šindija Jürgen Neuberg Patrick J. Smith

Seismometer

Seismogram

Synthetic seismogram

10.1016/j.jvolgeores.2021.107209

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Citations (1)

Waveform classification of volcanic low-frequency earthquake swarms and its implication at Soufrière Hills Volcano, Montserrat

Journal of Volcanology and Geothermal Research (2006)

David N. Green Jürgen Neuberg

Tiltmeter

Seismic Noise

10.1016/j.jvolgeores.2005.08.003

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Citations (138)

Exciting (and modulating) very-long-period seismic signals on White Island, New Zealand

EGUGA (2014)

Jürgen Neuberg A. D. Jolly

White (mutation)

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Results from the Broadband Seismic Network on Montserrat

Geophysical Research Letters (1998)

Jürgen Neuberg Brian Baptie Richard Luckett Rod Stewart

A digital broadband seismic network has been installed around Soufriere Hills Volcano on Montserrat. While several distinctive types of seismic events with frequencies ranging from 0.5Hz to 30Hz could be identified, the emphasis is on two types of low‐frequency events which indicate the involvement of a fluid phase in the source mechanism: the so‐called long‐period events and the hybrid events. The latter occur in swarms with distinct periodicities of 4 to 12 hours and preceed major dome collapses and explosions. The swarms correlate very well with the tilt observed at the flanks of the volcanic edifice and, hence, can be linked to the pressurization of the magmatic system. Occasionally separate hybrid events merge and form harmonic tremor, which sometimes has a shifting spectral content. This reveals temporary changes in the source parameters. Low‐frequency seismic signals on Montserrat are considered to be key parameters for the monitoring of the internal dynamics of the volcano.

Tiltmeter

Merge (version control)

10.1029/98gl01441

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Citations (87)

Earthquakes, Volcanogenic

Encyclopedia of earth sciences series/Encyclopedia of earth sciences (2011)

Jürgen Neuberg

10.1007/978-90-481-8702-7_159

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Citations (11)