Outage report · Partial outage

Google Cloud outage on Oct 8, 2026

Google Cloud Storage (GCS) customers experienced elevated latencies and error rates when performing upload or write operations.

SeverityPartial outage

StartedOct 8, 2026, 11:00UTC

ResolvedOct 9, 2026, 16:46UTC

Duration1d 5h

What happened

Google Cloud reported a partial outage starting Oct 8, 2026, 11:00 UTC, affecting Google Cloud Storage. It was marked resolved at Oct 9, 2026, 16:46 UTC.

The incident lasted 1d 5h from first report to resolution.
It was the 2nd longest of 7 significant outages Google Cloud reported in the 12 months up to it.
Google Cloud had reported 4 other partial or major outages in the 90 days before it.
12 other vendors we track reported a significant incident within 12 hours of it.

Latest update from Google Cloud

## Incident Report ## Date/Time of the Issue (All time US/Pacific) **Incident First Occurrence** Incident Start: 08 October 2026 04:00 Incident End: 08 October 2026 16:30 Duration: 12 hours, 30 minutes **Incident Recurrence** Recurrence Start: 09 October 2026 04:05 Recurrence End: 09 October 2026 09:46 Duration: 5 hours, 41 minutes **Total Duration:** 18 hours, 11 minutes ## Summary On Thursday, 08 October 2026, Google Cloud Storage experienced elevated write latency and write error rates while performing upload or write operations in the us-central1 region for a duration of 12 hours, 30 minutes. This was followed by a recurrence on Friday, 09 October 2026 in the us-central1-b zone for a duration of 5 hours, 41 minutes. We are taking immediate steps to ensure this doesn’t happen again. ## Root Cause Google Cloud Storage relies on a highly distributed backend architecture to process and store incoming data. During the incident window, specific storage backend nodes within the us-central

Read Google Cloud's official incident report ↗