TY  - JOUR
AU  - Di Giacomo Domenico, Grosser Helmut
PY  - 2008//
TI  - Rapid determination of Me for strong to great shallow earthquakes
JO  - Geophys. Res. Lett.
SP  - L10308-
VL  - 35
IS  - 10
PB  - AGU
KW  - amplitude decay dunctions
KW  - readiated seismic energy
KW  - energy magnitude
KW  - 7219 Seismology: Seismic monitoring and test-ban treaty verification
KW  - 7215 Seismology: Earthquake source observations
KW  - 7203 Seismology: Body waves
KW  -
N2  - We propose a new rapid procedure for determining the energy magnitude Me for shallow events from broadband teleseismic P-wave signals within the distance range 20–98. To accomplish this task, we compute spectral amplitude decay functions for different periods using numerical simulations based on the reference Earth model AK135Q. By means of these functions, we correct the spectra of the teleseismic recordings for the propagation path effects, and calculate the radiated seismic energy E  S , and hence Me. We use cumulative P-wave windows for simulating a real- or near real-time procedure and test it for 61 shallow earthquakes. The results show that our approach is able to provide a rapid and reliable Me determination within 7–15 minutes after the earthquake origin time, and is therefore suitable for implementation in rapid response systems.
SN  - 0094-8276
UR  - http://dx.doi.org/10.1029/2008GL033505
N1  - exported from refbase (http://publi.ipev.fr/polar_references/show.php?record=2783), last updated on Fri, 05 Jul 2024 20:35:56 +0200
ID  - DiGiacomoDomenico2008
ER  -