Seismic and infrasonic signals associated with an unusual collapse event at the Soufrière Hills volcano, Montserrat

Details Seismic and infrasonic signals associated with an unusual collapse event at the Soufrière Hills volcano, Montserrat Seismic and infrasonic signals associated with an unusual collapse event at the Soufrière Hills volcano, Montserrat

Apr 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3207308g&link_type=abstract

Geophysical Research Letters, Volume 32, Issue 7, CiteID L07308

Computer Science

Sound

2

Seismology: Volcano Seismology (8419), Volcanology: Eruption Mechanisms And Flow Emplacement, Volcanology: Volcano Monitoring (7280)

Scientific paper

In March 2004, during a period of no magma extrusion at Soufrière Hills volcano, Montserrat, an explosive event occurred with little precursory activity. Recorded broadband seismic signals ranged from an ultra-long-period signal with a dominant period of 120 s to impulsive, short-duration events containing frequencies up to 30 Hz. Synthetic displacement functions were fit to the long-period data after application of the seismometer response. These indicate a shallow collapse of the volcanic edifice occurred, initiated ~300 m below the surface, lasting ~100 s. Infrasonic tremor and pulses were also recorded in the 1-20 Hz range. The high-frequency seismicity and infrasound are interpreted as the subsequent collapse of a gravitationally unstable buttress of remnant dome material which impacted upon the edifice surface. This unique dataset demonstrates the benefits of deploying multi-parameter stations equipped with broadband instruments.

Affiliated with

Also associated with

No associations

Rating

Seismic and infrasonic signals associated with an unusual collapse event at the Soufrière Hills volcano, Montserrat does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Seismic and infrasonic signals associated with an unusual collapse event at the Soufrière Hills volcano, Montserrat, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Seismic and infrasonic signals associated with an unusual collapse event at the Soufrière Hills volcano, Montserrat will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-971845