date: 2026-04-10T12:28:57Z pdf:PDFVersion: 1.4 pdf:docinfo:title: DeepSubDAS: an earthquake phase picker from submarine distributed acoustic sensing data xmp:CreatorTool: OUP access_permission:can_print_degraded: true subject: DOI: 10.1093/gji/ggag061 Geophysical Journal International, 245, 2, 9-2-2026. Abstract: Given the scarcity of seismometers in marine environments, traditional seismology has limited effectiveness in oceanic regions. Submarine Distributed Acoustic Sensing (DAS) systems offer a promising alternative for seismic monitoring in these areas. However, the existing machine learning model trained on land-based DAS data does not perform well with submarine DAS due to differences in noise characteristics, deployment conditions and environmental factors. This study presents a machine learning approach tailored specifically to submarine DAS data to enable automated seismic event detection and P- and S-wave identification. Leveraging DeepLab v3, a neural network architecture optimized for semantic segmentation, we developed a specialized model to handle the unique challenges of submarine DAS data. Our model was trained and validated on a data set comprising nearly 57 million manually and semi-automatically labelled seismic records from multiple globally distributed submarine sites, providing a robust basis for accurate seismic detection. The model adapts to a variety of deployment scenarios and can process DAS data from cables with different lengths, configurations and channel spacings, making it versatile for various ocean environments. We thus provide an adaptable and efficient tool for automated earthquake analysis of DAS data, which has the potential to enhance real-time earthquake monitoring and tsunami early warning in submarine environments. language: English dc:format: application/pdf; version=1.4 pdf:docinfo:creator_tool: OUP access_permission:fill_in_form: true pdf:encrypted: false dc:title: DeepSubDAS: an earthquake phase picker from submarine distributed acoustic sensing data modified: 2026-04-10T12:28:57Z cp:subject: DOI: 10.1093/gji/ggag061 Geophysical Journal International, 245, 2, 9-2-2026. Abstract: Given the scarcity of seismometers in marine environments, traditional seismology has limited effectiveness in oceanic regions. Submarine Distributed Acoustic Sensing (DAS) systems offer a promising alternative for seismic monitoring in these areas. However, the existing machine learning model trained on land-based DAS data does not perform well with submarine DAS due to differences in noise characteristics, deployment conditions and environmental factors. This study presents a machine learning approach tailored specifically to submarine DAS data to enable automated seismic event detection and P- and S-wave identification. Leveraging DeepLab v3, a neural network architecture optimized for semantic segmentation, we developed a specialized model to handle the unique challenges of submarine DAS data. Our model was trained and validated on a data set comprising nearly 57 million manually and semi-automatically labelled seismic records from multiple globally distributed submarine sites, providing a robust basis for accurate seismic detection. The model adapts to a variety of deployment scenarios and can process DAS data from cables with different lengths, configurations and channel spacings, making it versatile for various ocean environments. We thus provide an adaptable and efficient tool for automated earthquake analysis of DAS data, which has the potential to enhance real-time earthquake monitoring and tsunami early warning in submarine environments. pdf:docinfo:subject: DOI: 10.1093/gji/ggag061 Geophysical Journal International, 245, 2, 9-2-2026. Abstract: Given the scarcity of seismometers in marine environments, traditional seismology has limited effectiveness in oceanic regions. Submarine Distributed Acoustic Sensing (DAS) systems offer a promising alternative for seismic monitoring in these areas. However, the existing machine learning model trained on land-based DAS data does not perform well with submarine DAS due to differences in noise characteristics, deployment conditions and environmental factors. This study presents a machine learning approach tailored specifically to submarine DAS data to enable automated seismic event detection and P- and S-wave identification. Leveraging DeepLab v3, a neural network architecture optimized for semantic segmentation, we developed a specialized model to handle the unique challenges of submarine DAS data. Our model was trained and validated on a data set comprising nearly 57 million manually and semi-automatically labelled seismic records from multiple globally distributed submarine sites, providing a robust basis for accurate seismic detection. The model adapts to a variety of deployment scenarios and can process DAS data from cables with different lengths, configurations and channel spacings, making it versatile for various ocean environments. We thus provide an adaptable and efficient tool for automated earthquake analysis of DAS data, which has the potential to enhance real-time earthquake monitoring and tsunami early warning in submarine environments. pdf:docinfo:creator: Xiao Han, Tilmann Frederik, van den Ende Martijn, Rivet Diane, Loureiro Afonso, Tsuji Takeshi, Ugalde Arantza, Shi Qibin, Denolle Marine A. meta:author: Xiao Han, Tilmann Frederik, van den Ende Martijn, Rivet Diane, Loureiro Afonso, Tsuji Takeshi, Ugalde Arantza, Shi Qibin, Denolle Marine A. meta:creation-date: 2026-03-10T09:43:56Z created: 2026-03-10T09:43:56Z access_permission:extract_for_accessibility: true Creation-Date: 2026-03-10T09:43:56Z pdf:docinfo:custom:doi: 10.1093/gji/ggag061 Author: Xiao Han, Tilmann Frederik, van den Ende Martijn, Rivet Diane, Loureiro Afonso, Tsuji Takeshi, Ugalde Arantza, Shi Qibin, Denolle Marine A. producer: Acrobat Distiller 25.0 (Windows); modified using iTextSharp.LGPLv2.Core 3.7.4.0 pdf:docinfo:producer: Acrobat Distiller 25.0 (Windows); modified using iTextSharp.LGPLv2.Core 3.7.4.0 doi: 10.1093/gji/ggag061 pdf:unmappedUnicodeCharsPerPage: 1 dc:description: DOI: 10.1093/gji/ggag061 Geophysical Journal International, 245, 2, 9-2-2026. Abstract: Given the scarcity of seismometers in marine environments, traditional seismology has limited effectiveness in oceanic regions. Submarine Distributed Acoustic Sensing (DAS) systems offer a promising alternative for seismic monitoring in these areas. However, the existing machine learning model trained on land-based DAS data does not perform well with submarine DAS due to differences in noise characteristics, deployment conditions and environmental factors. This study presents a machine learning approach tailored specifically to submarine DAS data to enable automated seismic event detection and P- and S-wave identification. Leveraging DeepLab v3, a neural network architecture optimized for semantic segmentation, we developed a specialized model to handle the unique challenges of submarine DAS data. Our model was trained and validated on a data set comprising nearly 57 million manually and semi-automatically labelled seismic records from multiple globally distributed submarine sites, providing a robust basis for accurate seismic detection. The model adapts to a variety of deployment scenarios and can process DAS data from cables with different lengths, configurations and channel spacings, making it versatile for various ocean environments. We thus provide an adaptable and efficient tool for automated earthquake analysis of DAS data, which has the potential to enhance real-time earthquake monitoring and tsunami early warning in submarine environments. Keywords: access_permission:modify_annotations: true dc:creator: Xiao Han, Tilmann Frederik, van den Ende Martijn, Rivet Diane, Loureiro Afonso, Tsuji Takeshi, Ugalde Arantza, Shi Qibin, Denolle Marine A. description: DOI: 10.1093/gji/ggag061 Geophysical Journal International, 245, 2, 9-2-2026. Abstract: Given the scarcity of seismometers in marine environments, traditional seismology has limited effectiveness in oceanic regions. Submarine Distributed Acoustic Sensing (DAS) systems offer a promising alternative for seismic monitoring in these areas. However, the existing machine learning model trained on land-based DAS data does not perform well with submarine DAS due to differences in noise characteristics, deployment conditions and environmental factors. This study presents a machine learning approach tailored specifically to submarine DAS data to enable automated seismic event detection and P- and S-wave identification. Leveraging DeepLab v3, a neural network architecture optimized for semantic segmentation, we developed a specialized model to handle the unique challenges of submarine DAS data. Our model was trained and validated on a data set comprising nearly 57 million manually and semi-automatically labelled seismic records from multiple globally distributed submarine sites, providing a robust basis for accurate seismic detection. The model adapts to a variety of deployment scenarios and can process DAS data from cables with different lengths, configurations and channel spacings, making it versatile for various ocean environments. We thus provide an adaptable and efficient tool for automated earthquake analysis of DAS data, which has the potential to enhance real-time earthquake monitoring and tsunami early warning in submarine environments. dcterms:created: 2026-03-10T09:43:56Z Last-Modified: 2026-04-10T12:28:57Z dcterms:modified: 2026-04-10T12:28:57Z title: DeepSubDAS: an earthquake phase picker from submarine distributed acoustic sensing data xmpMM:DocumentID: uuid:3d7083fe-d177-3bf3-b857-ea329af1e291 Last-Save-Date: 2026-04-10T12:28:57Z pdf:docinfo:keywords: pdf:docinfo:modified: 2026-04-10T12:28:57Z meta:save-date: 2026-04-10T12:28:57Z Content-Type: application/pdf X-Parsed-By: org.apache.tika.parser.DefaultParser creator: Xiao Han, Tilmann Frederik, van den Ende Martijn, Rivet Diane, Loureiro Afonso, Tsuji Takeshi, Ugalde Arantza, Shi Qibin, Denolle Marine A. dc:language: English dc:subject: access_permission:assemble_document: true xmpTPg:NPages: 16 pdf:charsPerPage: 4650 access_permission:extract_content: true access_permission:can_print: true meta:keyword: access_permission:can_modify: true pdf:docinfo:created: 2026-03-10T09:43:56Z