Overview

• An explosion Monday night at SPS Technologies in Abington Township triggered a four-alarm fire, with flames reigniting Tuesday morning.
• Authorities issued a shelter-in-place order within a one-mile radius due to potential air quality risks, later urging voluntary evacuations for about 700 residents.
• Firefighters from 68 companies battled the blaze, which was complicated by hazardous chemicals, high winds, and frigid temperatures.
• Environmental and public safety officials are monitoring air and water quality, with no immediate threats detected but concerns about long-term impacts remaining.
• SPS Technologies, a manufacturer for the aerospace industry, has faced prior environmental and workplace safety violations, including issues with chemical storage.