A power-related outage in Google Cloud’s London infrastructure left customers struggling to access banking apps and other online services on Oct. 20.

The disruption affected Google’s europe-west2 region and businesses including Revolut and Halifax. Google later confirmed that engineers had restored full service availability after the incident, which lasted nearly eight hours.

For IT teams, the immediate task is checking that their own applications and dependent services have recovered.

Power event disrupts London cloud services

Google’s incident dashboard lists the disruption as lasting 7 hours and 52 minutes, from 7:08 a.m. to 3 p.m. British Summer Time on Oct. 20.

They attributed the disruption to a power event in the europe-west2-b zone. Services there became unavailable, while some services elsewhere in the London region experienced elevated errors and intermittent network problems.

Affected products included Compute Engine, Google Kubernetes Engine, Cloud SQL and Cloud Storage.…