Operational seismo-acoustic event monitoring in the Netherlands using SeisComP on cloud-native infrastructure

The Royal Netherlands Meteorological Insitute (KNMI) is the national institute responsible for 24/7 operations in seismo-acoustic event detection and dissemination to the public. In early 2025 the KNMI migrated its entire operational chain to AWS cloud infrastructure. The software stack is based on the open-source SeisComP package, implemented using a container-based serverless architecture. Seismic detections are augmented by acoustic event detections using the proprietary Lambda package. The cloud infrastructure manages data acquisition and archival, multiple parallel real-time processing pipelines for event detection, and public webservices that export waveform data, station metadata, and event parameters. The system is based on an event-driven architecture with triggers on automatic event detection and publication to official channels. The infrastructure is designed to be as stateless as possible, featuring a single central archive and database. The health of all running services in containers is automatically monitored and unexpected failures are to the first degree self-recoverable by the infrastructure. All current and future developments leverage continuous integration and deployment through Git repositories that fully describe the required infrastructure as code. The source control system for code, configuration, infrastructure, and deployment records the complete provenance of the operational chain. This approach also facilitates near-instant rollbacks to previous versions and the deployment of separate development, acceptance, and production environments through which changes can be tested before being pushed to operations. We present a detailed overview of the challenges encountered and respective solutions using AWS cloud-native infrastructure and services that were used to realize this design.