Companies operating commercial data centers on the US East Coast said Tuesday's moderate earthquake had no impact on their facilities'operations, except mandatory staff evacuations from two data centers. The 5.9-magnitude quake with epicenter in Virginia hit around 2 p.m. EDT.

Employees of two data centers operated by wholesale data center provider Digital Realty Trust temporarily left the buildings in Virginia and Philadelphia when the earthquake hit under mandatory evacuation orders, Digital spokeswoman Pamela Matthews Garibaldi said. The data centers, however, continued operating without interruption.

Brian Johnston, CTO at QTS, whose Richmond, Virginia, data center is located close the quake's epicenter said both the Richmond facility and the company's Jersey City, New Jersey, data center continued normal operation through the earthquake and immediately after.

"QTS is pleased to report that neither its Richmond data center nor its Jersey City data center experienced interruptions," Johnston wrote in an emailed statement.

Data center services provider Sungard has 12 data centers within the zone of the earthquake. All 12 kept humming through the tremor, said the company's spokesperson Marifran Manzo-Ritchie.

"At this time, all systems are working normally and we have no reports or indications of any power outages in any of our data centers or workforce recovery centers," Manzo-Ritchie wrote in an emailed statement around 4:40 p.m.

"We are in contact with our customers and we continue to monitor facilities for any incidental damage or related issues."

Terremark, the data center operator that was recently acquired by Verizon, also did not report any service interruptions. The company's spokesman Xavier Gonzalez wrote to DatacenterDynamics that there were no issues with its data center in the region.

Terremark's East Coast data center called NAP of the Capital Region is located in Culpeper, Virginia.

Spokespeople for wholesale data center provider DuPont Fabros, retail colocation provider Equinix, data center and hosting services provider Savvis and hosting company Rackspace also said no data center operations on the East Coast were impacted by the quake.

The health dashboard for Amazon Web Services showed no disruptions for cloud services hosted in the company's East Coast data centers as of 5:15 p.m.

Data center provider Paetec wrote on its Twitter feed that it had received no reports of earthquake-related interruptions to its services or facilities.