The October 20, 2026 Google Cloud europe-west2 Outage
Introduction
Multiple Google Cloud services in europe-west2 (London) experienced service disruptions, elevated error rates, API timeouts and processing latency on October 20, 2026, according to Google's incident page. Google's preliminary incident report records the start at 23:00 US/Pacific on October 19, 2026 (06:00 UTC on October 20) and the end at 05:10 US/Pacific on October 20 (12:10 UTC) - 6 hours 10 minutes. Google attributes the outage to an electrical power interruption at the datacenter facility hosting availability zone europe-west2-b. When UPS batteries depleted after backup generators failed to assume the load, hosts, network hardware and storage in that zone went offline, and failover then overloaded other zones in the region. Google says the preliminary text is its best knowledge at posting and is subject to change, and that a final incident report with preventative actions will follow once the investigation is complete.
