Electrical fire at NYSE data centre in Mahwah, New Jersey
2011Published 12 Oct 2026Responsible editor: Chief Editor
Get the next one by email
Free alerts on data centre incidents in the United States, and an email when EIR-2297 is updated. No account needed; unsubscribe in one click.
Get a free sample brief Three complete verified records and the incidents-per-GW table, by email within a minute.
By signing up you agree to the privacy policy.
What happened
An electrical fire broke out at the New York Stock Exchange's data centre in Mahwah, New Jersey, the company said in a notice to customers issued on the night of Sunday 9 October 2011. The fire affected a room housing 58 customers, and NYSE warned that their communications would be impacted. NYSE Euronext said its trading systems were not affected and would operate on a normal schedule on Monday 10 October. The 400,000 sq ft facility is split into 20,000 sq ft pods and had come online in April 2010. NYSE's sister data centre is located in Basildon, outside London.
Contributing factors
The source does not report the cause of the fire, the equipment involved, or whether any fire suppression system operated.
Lessons learned
- Electrical fires in shared data centre rooms can disrupt many customers at once, so operators should map which customers and services share each power and fire zone.
- Customer notification should be issued promptly and state clearly which services are affected and which are not.
- Operators with a sister site should confirm that failover and trading or service continuity arrangements work independently of the affected room.
More lessons on outages, backup supply and restoration, emergency response and public communication, investigation and fleet-wide checks, from every incident on the register.
Source
Published 2026-10-12. Written from public reporting. Descriptive, not investigative. See the data accuracy disclaimer.
