Journal cover Journal topic
Natural Hazards and Earth System Sciences An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

IF value: 3.102
IF3.102
IF 5-year value: 3.284
IF 5-year
3.284
CiteScore value: 5.1
CiteScore
5.1
SNIP value: 1.37
SNIP1.37
IPP value: 3.21
IPP3.21
SJR value: 1.005
SJR1.005
Scimago H <br class='widget-line-break'>index value: 90
Scimago H
index
90
h5-index value: 42
h5-index42
Volume 5, issue 6
Nat. Hazards Earth Syst. Sci., 5, 777–782, 2005
https://doi.org/10.5194/nhess-5-777-2005
© Author(s) 2005. This work is licensed under
the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.

Special issue: Seismic hazard evaluation, precursory phenomena and seismo...

Nat. Hazards Earth Syst. Sci., 5, 777–782, 2005
https://doi.org/10.5194/nhess-5-777-2005
© Author(s) 2005. This work is licensed under
the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.

  13 Oct 2005

13 Oct 2005

Acoustic emission and released seismic energy

G. P. Gregori1, G. Paparo1, M. Poscolieri1, and A. Zanini2 G. P. Gregori et al.
  • 1Istituto di Acustica O. M. Corbino, via Fosso del Cavaliere 100, 00133 Roma, Italy
  • 2Univ. degli Studi di Roma – Tor Vergata, Dipartimento di Ingegneria Meccanica, via del Politecnico 1, 00133 Roma, Italy

Abstract. Intense crises of crustal stress appear to cross large regions, and to precede by several months the eventual occurrence of some strong earthquake within them. The phenomenon is not linear, and the stress control reflects some wide scale-size rather than local effects. The stress propagation through the crust can be effectively monitored by means of acoustic emission (AE) techniques (ultrasounds). The correlation is here investigated between crustal stress crises and the total release of seismic energy within some space domain around the AE recording site. Some clear inferences can be envisaged, although a significant diagnosis of the state of the crust within a given region ought to request arrays of simultaneously operated AE recorders. Some case histories are described dealing with the Italian peninsula and with the Cephallonia Island.

Publications Copernicus
Download
Citation
Altmetrics