OPTIMUM SEISMIC, INC.
March 2026 NEWSLETTER
Lessons from One of America’s Most Powerful Earthquakes
Ali Sahabi, GEC
Principal,
Optimum Seismic, Inc.
The 1886 Charleston earthquake remains one of the most powerful earthquakes in U.S. history, with an estimated magnitude of 7.0 that damaged thousands of buildings and was felt across several states. Because the event occurred before modern seismic instruments existed, scientists continue to study historical records and geological evidence to better understand which fault caused the earthquake and how the ground moved.
Events like the Charleston earthquake highlight an important reality: even regions not known for frequent seismic activity can experience damaging earthquakes. For building owners, this reinforces the importance of structural resilience. Strengthening vulnerable buildings through seismic retrofitting remains one of the most effective ways to protect occupants, preserve property, and reduce damage when the next earthquake occurs.
25 years after the Nisqually earthquake: A Reporter’s Notebook
I’m not sure there will ever be another news day like it in Seattle.
I was a young reporter back on February 27th, 2001, working at a local TV station, and was assigned to cover the Fat Tuesday celebrations in Pioneer Square.
Read more
Scientists Map a Previously Invisible Fault Structure That May Trigger a Major Earthquake
A long-silent earthquake zone is finally revealing what lies beneath. What researchers are now seeing could change how future seismic events are understood.
A new 3D model is giving scientists a clearer look at what’s happening deep beneath the Marmara Seaand where the next major earthquake near Istanbul might start. By mapping underground rock properties, the study highlights zones where stress could already be building along the North Anatolian Fault.
Read more
Over 80% in Japan believe a major disaster is coming in the near future
More than 80% of people in Japan believe a disaster on the scale of the 2011 Great East Japan Earthquake could occur in the foreseeable future, but nearly 70% say they have not taken sufficient measures to prepare for it, according to a survey released by the Japanese Red Cross Society ahead of the disaster’s 15th anniversary.
The magnitude 9.0 earthquake and tsunami that struck northeastern Japan on March 11, 2011, caused widespread devastation across the Tohoku region, particularly in Iwate, Miyagi and Fukushima prefectures, and claimed approximately 20,000 lives.
Read More >>
How Buildings Are Damaged During Earthquakes
During an earthquake, the ground moves suddenly and forcefully, placing extreme stress on buildings. When structures are not properly designed or reinforced, elements such as walls, facades, parapets, ceilings, and other components can fail, creating serious safety hazards for occupants and pedestrians.
Why Does This Matter?
It matters because never before have we understood so much about the structural vulnerabilities of our buildings, and how to fix them.
Read More >>
Optimum Seismic Now
Thank you to everyone who stopped by the Optimum Seismic booth at the AAOC Trade Show. We enjoyed connecting with property owners and managers and discussing seismic retrofits and SB 721 balcony inspections and repairs. It was a great opportunity to share how our team supports projects from engineering through construction. We appreciate our continued partnership with AAOC and look forward to staying connected.
We had a great time at the Income Property Management Expo (IPME) hosted by Apartment Association of Greater Los Angeles (AAGLA). Thank you to everyone who stopped by and connected with the team.
We appreciate the opportunity to discuss seismic retrofits and SB 721 balcony compliance with so many property owners and managers. We look forward to continuing the conversation.
We had a great time at the Income Property Management Expo (IPME) hosted by Apartment Association of Greater Los Angeles (AAGLA). Thank you to everyone who stopped by and connected with the team.
We appreciate the opportunity to discuss seismic retrofits and SB 721 balcony compliance with so many property owners and managers. We look forward to continuing the conversation.
