Hydroseismicity - a viable trigger mechanism in the New Madrid seismic zone?

C. P. Ervin, I. El-Hussain

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

A pressure wave, initiated by water loading and propagating downward through subsurface water contained in fractures, has been hypothesized as a mechanism for triggering earthquakes along pre-existing faults at depths up to 15-20 km. Such a triggering wave might evidence itself by a coincident wave of descending seismicity. In the New Madrid region, seismicity has been reported to correlate with river stage, but usually with a lag of one to several months. River stage data from New Madrid and earthquake data from the St Louis University's microseismic network were examined for evidence of a time-lag in seismic activity with depth during the interval from Jan. 1, 1978, to May 31, 1987. No evidence for a seismicity wave was found. -from Authors

Original languageEnglish
Pages (from-to)285-288
Number of pages4
JournalSeismological Research Letters
Volume59
Issue number4
Publication statusPublished - 1988

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trigger mechanism
seismic zone
actuators
seismicity
rivers
time lag
earthquakes
elastic waves
earthquake
water
river
intervals

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)
  • Environmental Science(all)

Cite this

Hydroseismicity - a viable trigger mechanism in the New Madrid seismic zone? / Ervin, C. P.; El-Hussain, I.

In: Seismological Research Letters, Vol. 59, No. 4, 1988, p. 285-288.

Research output: Contribution to journalArticle

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