Aerial survey · USDA NAIP · public domainA curved brick memorial marks where a 1968 gas explosion killed 41 people and reshaped federal pipeline safety law
SW corner of S 5th St and Main St, Richmond, IN 47374
Research updated June 2026
Age
All Ages
Cost
Free
Public outdoor memorial; free to visit at any time
Access
Wheelchair OK
Flat urban sidewalk adjacent to Wayne County Courthouse annex grounds
Equipment
Photos OK
41 killed in 1968 gas explosion · Prompted Natural Gas Pipeline Safety Act of 1968 · Largest peacetime industrial disaster in Richmond history
April 6, 1968 began as an ordinary Saturday morning in downtown Richmond. Shortly after 1:00 p.m., a natural gas leak that had accumulated beneath the Marting Arms sporting goods store ignited. The first explosion was powerful enough to be heard two miles away. A second, larger explosion followed almost immediately, fueled in part by gunpowder and ammunition stored in the sporting goods inventory.
Fifteen buildings in the downtown core were destroyed. Forty-one people died — seven of them children — and more than 150 were injured. The death toll included shoppers, store employees, and bystanders who had gathered outside after the first blast, not yet understanding what was happening beneath the street.
The disaster's political consequences were swift. Congress passed the Natural Gas Pipeline Safety Act of 1968 later that year, establishing for the first time a federal framework for regulating gas pipeline infrastructure. Richmond's explosion was cited directly in the congressional record as the event that demonstrated the need for national standards.
A curved brick memorial was installed at the blast's epicenter on the southwest corner of S 5th Street and Main Street. A second monument was added in 2018 for the explosion's 50th anniversary. Both remain on the Wayne County Courthouse annex grounds, maintained as a public site.
Sources
The 1968 Richmond explosion site draws visitors primarily as a documented historical tragedy rather than as a paranormal destination. The scale of the event — 41 dead, 15 buildings destroyed, an entire block of downtown Richmond erased in seconds — gives the memorial site the weight of a genuine mass casualty site.
The curved brick memorial and the 2018 anniversary stone create a quiet counterpoint to the explosion's chaos. Visitors who know the history of the Natural Gas Pipeline Safety Act can connect the physical location of the blast to its regulatory legacy, making this an unusual dark-tourism site: one where the lasting consequence is a federal law rather than a ghost story.
A curved brick memorial and a 50th-anniversary stone monument mark the southwest corner of S 5th St and Main St. The explosion's footprint covered 15 city blocks; the surrounding downtown retains gaps and rebuilt structures that reflect the disaster's scale. A self-guided walk can cover the blast zone and the courthouse area.
Every HauntBound history is researched from documented sources. We clearly separate verified historical fact from paranormal folklore.
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