Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/8682
Authors: Del Pezzo, E.* 
Bianco, F.* 
Borgna, I.* 
Title: Magnitude scale for LP events: a quantification scheme for volcanic quakes
Journal: Geophysical Journal International 
Series/Report no.: /194 (2013)
Publisher: Wiley-Blackwell
Issue Date: 29-Apr-2013
DOI: 10.1093/gji/ggt126
Keywords: Earthquake source observations;
Volcano monitoring
Volcano seismology
Subject Classification04. Solid Earth::04.06. Seismology::04.06.03. Earthquake source and dynamics 
04. Solid Earth::04.06. Seismology::04.06.08. Volcano seismology 
04. Solid Earth::04.06. Seismology::04.06.09. Waves and wave analysis 
Abstract: The peculiar source characteristics of long-period seismic events (time persistency of the source, low-frequency peaks in the source spectrum, absence of high-frequency radiation) prevent the formation of a definite high-frequency coda in the seismograms. In contrast, this is well formed in volcano–tectonic quakes. For this reason, the widely used duration magnitude scale that is based on the proportionality between the energy and the coda duration cannot be used for long-period estimation. In observatory practice, the long-period magnitude is sometimes estimated using the same duration magnitude scale, leading to confusing results. In this report, we show a new method to estimate the magnitude of long-period events that generally occur for volcanoes, with some application examples from data for Mt Etna (Italy), Colima Volcano (Mexico) and Campi Flegrei (Italy).
Appears in Collections:Article published / in press

Files in This Item:
File Description SizeFormat Existing users please Login
Geophys J Int 2013 E.pdfMain article + Figures1.25 MBAdobe PDF
Show full item record

WEB OF SCIENCETM
Citations 50

4
checked on Feb 7, 2021

Page view(s)

134
checked on Mar 27, 2024

Download(s)

24
checked on Mar 27, 2024

Google ScholarTM

Check

Altmetric