Solid engineering solutions making seismic compliance straightforward and affordable.

Welcome to Petra Seismic Design, LLC.

Petra Seismic Design provides cost effective seismic restraint design services for the commercial, institutional, and industrial facilities. Our services include risk analysis, field inspections, and training. We work with industry and organizations to address real construction issues in order to improve the effectiveness of seismic design applications and contribute to the technological advancement of the seismic industry. It is our desire to be a customer's single source for seismic information and seismic design.

Our staff has extensive experience in all areas of construction from schools and hospitals to nuclear facilities. With over 28 years of experience in seismic restraint design, risk assessment, field inspection, research oversight, and evaluating shake table testing of equipment; we offer clients confidence in our ability to address every issue.

Browse our website to see the services, resources and information we offer.

The 5 Most Recent M5+ Earthquakes
Real-time, worldwide data provided by earthquake.usgs.gov
M 5.1, northern Italy
Updated: 5/20/2012 at 13:18:02 UTC
44.795°N 11.440°E

Sunday, May 20, 2012 13:18:02 UTC
Sunday, May 20, 2012 03:18:02 PM at epicenter

Depth: 8.90 km (5.53 mi)

M 5.0, off the east coast of Honshu, Japan
Updated: 5/20/2012 at 08:41:45 UTC
39.641°N 143.091°E

Sunday, May 20, 2012 08:41:45 UTC
Sunday, May 20, 2012 06:41:45 PM at epicenter

Depth: 10.00 km (6.21 mi)

M 5.1, off the east coast of Honshu, Japan
Updated: 5/20/2012 at 08:40:40 UTC
39.554°N 143.208°E

Sunday, May 20, 2012 08:40:40 UTC
Sunday, May 20, 2012 06:40:40 PM at epicenter

Depth: 10.00 km (6.21 mi)

M 5.3, off the east coast of Honshu, Japan
Updated: 5/20/2012 at 08:20:58 UTC
39.641°N 143.167°E

Sunday, May 20, 2012 08:20:58 UTC
Sunday, May 20, 2012 06:20:58 PM at epicenter

Depth: 10.00 km (6.21 mi)

M 6.0, off the east coast of Honshu, Japan
Updated: 5/20/2012 at 07:19:55 UTC
39.597°N 143.242°E

Sunday, May 20, 2012 07:19:55 UTC
Sunday, May 20, 2012 05:19:55 PM at epicenter

Depth: 10.00 km (6.21 mi)