Google Cloud Outage in us-west1 Region Detailed in Post-Mortem Report

A detailed report has been published regarding a Google Cloud outage that occurred on August 20, 2026, affecting 33 services in the us-west1 region for over two hours. The incident, attributed to routine fiber maintenance that went awry and a failure in automated rerouting systems, impacted services including Compute Engine, Google Kubernetes Engine, and BigQuery. The report highlights the challenges in cloud reliability amidst increasing demand for AI workloads.