Severe storms cause Amazon Web Services outage

For the second time in less than a month, Amazon’s Northern Virginia data center has suffered an outage and is impacting many popular services. Amazon’s status dashboard shows that the Elastic Compute, Elastic Cache, Elastic MapReduce and Relational Database Services have been out for over an hour. Amazon is blaming the outage on what it describes as “a power event.”

Dominion Virginia Power, which is an electricity provider to many data centers in the Virginia region says that severe storms in the region have disrupted power supplies.

A line of severe storms packing winds of up to 80 mph has caused extensive damage and power outages in Virginia.  Dominion Virginia Power crews are assessing damages and will be restoring power where safe to do so.  We appreciate your patience during this restoration process.  Additional details will be provided as they become available.

The outage is impacting sites such as Instagram, Pinterest & Netflix. Heroku, a platform provider to many startups and mobile apps has been impacted as well. Amazon previously suffered an outage in its Northern Virginia facilities on June 14, 2012.

Here are the latest status updates from Amazon’s dashboard:

8:21 PM PDT We are investigating connectivity issues for a number of instances in the US-EAST-1 Region.
8:31 PM PDT We are investigating elevated errors rates for APIs in the US-EAST-1 (Northern Virginia) region, as well as connectivity issues to instances in a single availability zone.
8:40 PM PDT We can confirm that a large number of instances in a single Availability Zone have lost power due to electrical storms in the area. We are actively working to restore power.
8:49 PM PDT Power has been restored to the impacted Availability Zone and we are working to bring impacted instances and volumes back online.
9:20 PM PDT We are continuing to work to bring the instances and volumes back online. In addition, EC2 and EBS APIs are currently experiencing elevated error rates.
9:24 PM PDT We can confirm that a large number of RDS instances are impaired. We are actively working on recovering them.
9:54 PM PDT EC2 and EBS APIs are once again operating normally. We are continuing to recover impacted instances and volumes.

Update: The Washington Post reported 1.5 million customers are without power in the DC area Saturday morning, with nearly 500,000 affected in Northern Virginia. (Comparing the storm to a hurricane in terms of damage, Dominion VA Power tweeted Saturday morning that it’s restored about 90,000 but it will be a multi-day effort.) Some of the AWS ripple effects from Friday night’s massive storm have been resolved — Netflix and Pinterest are back — but some remain down, including Instagram. Heroku continues to report problems.

At 5 a.m. PDT, AWS was still reporting power-related issues with Elastic Compute, Elastic Beanstalk and Relational Database Service.

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