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Eruption Prediction Aided by Electronic Tiltmeter Data at Mount St. Helens

Dzurisin, Daniel and Westphal, James A. and Johnson, Daniel J. (1983) Eruption Prediction Aided by Electronic Tiltmeter Data at Mount St. Helens. Science, 221 (4618). pp. 1381-1383. ISSN 0036-8075. https://resolver.caltech.edu/CaltechAUTHORS:20150121-101108556

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Abstract

Telemetry from electronic tiltmeters in the crater at Mount St. Helens contributed to accurate predictions of all six effusive eruptions from June 1981 to August 1982. Tilting of the crater floor began several weeks before each eruption, accelerated sharply for several days, and then abruptly changed direction a few minutes to days before extrusion began. Each episode of uplift was caused by the intrusion of magma into the lava dome from a shallow source, causing the dome to inflate and eventually rupture. Release of magma pressure and increased surface loading by magma added to the dome combined to cause subsidence just prior to extrusion.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1126/science.221.4618.1381DOIArticle
http://www.sciencemag.org/content/221/4618/1381PublisherArticle
http://www.jstor.org/stable/1691845JSTORArticle
Additional Information:© 1983 American Association for the Advancement of Science. Received 26 January 1983; revised 27 June 1983.
Issue or Number:4618
Record Number:CaltechAUTHORS:20150121-101108556
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20150121-101108556
Official Citation:Eruption Prediction Aided by Electronic Tiltmeter Data at Mount St. Helens DANIEL DZURISIN, JAMES A. WESTPHAL, and DANIEL J. JOHNSON Science 30 September 1983: 221 (4618), 1381-1383. [DOI:10.1126/science.221.4618.1381]
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:53940
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:21 Jan 2015 20:41
Last Modified:03 Oct 2019 07:53

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