Seismic-monitoring changes and the remote deployment of seismic stations (seismic spider) at Mount St. Helens, 2004-2005

Patrick J. McChesney; Marvin R. Couchman; Seth C. Moran; Andrew B. Lockhart; Kelly J. Swinford; Richard G. LaHusen

doi:10.3133/pp17507

Seismic-monitoring changes and the remote deployment of seismic stations (seismic spider) at Mount St. Helens, 2004-2005: Chapter 7 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006

Professional Paper 1750-7

This report is Chapter 7 in A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006. For more information, see: Professional Paper 1750

By: Patrick J. McChesney, Marvin R. Couchman, Seth C. Moran, Andrew B. Lockhart, Kelly J. Swinford, and Richard G. LaHusen

Edited by: David R. Sherrod, William E. Scott, and Peter H. Stauffer

https://doi.org/10.3133/pp17507

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Abstract

The instruments in place at the start of volcanic unrest at Mount St. Helens in 2004 were inadequate to record the large earthquakes and monitor the explosions that occurred as the eruption developed. To remedy this, new instruments were deployed and the short-period seismic network was modified. A new method of establishing near-field seismic monitoring was developed, using remote deployment by helicopter. The remotely deployed seismic sensor was a piezoelectric accelerometer mounted on a surface-coupled platform. Remote deployment enabled placement of stations within 250 m of the active vent.

Suggested Citation

McChesney, P.J., Couchman, M.R., Moran, S.C., Lockhart, A., Swinford, K.J., and LaHusen, R.G., 2008, Seismic-monitoring changes and the remote deployment of seismic stations (seismic spider) at Mount St. Helens, 2004-2005: U.S. Geological Survey Professional Paper 1750-7, 12 p., https://doi.org/10.3133/pp17507.

ISSN: 2330-7102 (online)

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Additional publication details
Publication type	Report
Publication Subtype	USGS Numbered Series
Title	Seismic-monitoring changes and the remote deployment of seismic stations (seismic spider) at Mount St. Helens, 2004-2005
Series title	Professional Paper
Series number	1750-7
DOI	10.3133/pp17507
Year Published	2008
Language	English
Publisher	U.S. Geological Survey
Publisher location	Reston, VA
Contributing office(s)	Volcano Hazards Program
Description	12 p.
Larger Work Type	Report
Larger Work Subtype	USGS Numbered Series
Larger Work Title	A volcano rekindled: the renewed eruption of Mount St. Helens, 2004-2006 (Professional Paper 1750)
First page	129
Last page	140
Country	United States
State	Washington
Other Geospatial	Mount St. Helens