Encyclopedia of Earthquake Engineering

2015 Edition
| Editors: Michael Beer, Ioannis A. Kougioumtzoglou, Edoardo Patelli, Siu-Kui Au

Seismometer Arrays

  • Johannes SchweitzerEmail author
Reference work entry
DOI: https://doi.org/10.1007/978-3-642-35344-4_191

Synonyms

Arrays; Beamforming; fk-analysis; Seismic arrays

Introduction

Definition and Purpose

In seismology, the term “array” (of seismometers) has been known for more than 50 years. Today this phrase is often used for any group of seismic stations in the sense as defined in Macmillan’s online dictionary, where an array is described as “a number of pieces of equipment of the same type, connected together to do a particular job” (Macmillan 2013). In this chapter, the term “seismometer arrays” is used with a more restricted definition, as it was originally introduced to seismology. A seismometer array can be defined as (Schweitzer et al. 2012): “A seismic array is a set of seismometers deployed so that characteristics of the seismic wavefield at a specified reference point, within or close to the array, can be inferred by analyzing the waveforms recorded at the different sites. A seismic array differs from a local network of seismic stations mainly by the techniques used for data...

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Authors and Affiliations

  1. 1.NORSARKjellerNorway