Citation

Susagna T, Roca A, Goula1 X, Batlló J. Nat. Hazards 1994; 10(1-2): 7-17.

Copyright

(Copyright © 1994, Holtzbrinck Springer Nature Publishing Group)

DOI

10.1007/BF00643438

PMID

unavailable

Abstract

The 19 November 1923 earthquake in the Aran Valley (Central Pyrenees), with observed maximum intensityI max = VIII (MSK), has been studied through the compiling and reviewing of macroseismic information and collecting and processing early seismograms. Analysis of macroseismic data gives a focal depth ofh = 5 km and an anelastic attenuation coefficientα ≤ 10−3 km−1. Analysis of early instrumental records allows the computation of estimate of magnitude (M L = 5.6) and seismic moment (M o = 1.1 × 1017 N × m) which are consistent with the values ofI o andh obtained from macroseismic data.

Language: en