Comparison of seismic records obtained by distributed acoustic sensing and ocean bottom seismometers

Journal of the European Optical Society Rapid Publications 2026 Open access

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Authors: Orlando Frazão, Susana Silva, Carlos Corela, Afonso Loureiro, Susana Gonçalves, Paulo Robalinho, Ricardo Sousa, Hugo Fidalgo Martins, Fernando Carrilho, Rachid Omira, M. Niehus, Luis Manuel Matias
DOI: 10.1051/jeos/2026007
Cited by: 1
References: 8

Abstract

This work presents an experimental framework for offshore seismic monitoring that combines Distributed Acoustic Sensing (DAS) with ocean-bottom seismometers (OBS). The study was conducted in the Azores region – Faial, where an HDAS interrogator prototype was connected to dark fiber submarine fiber-optic cable, complemented by the installation of two Ocean Bottom Seismometers (OBS) for calibration and validation of DAS technology. The main objective is to demonstrate that seismic observations obtained by DAS from seafloor cables can provide essential information similar to OBS and particularly in areas where land-based monitoring stations are limited.

Fields of Study & Subjects

Seismic Waves and Analysis Underwater Acoustics Research Underwater Vehicles and Communication Systems

Publication details

Journal / source
Journal of the European Optical Society Rapid Publications
Publisher
EDP Sciences
Volume
22
Issue
1
Pages
11–11
Publication date
1 January 2026
Language
EN