# FALL OF ROOF OR BACK
> MSHA accident `220221250018` · 04/26/2022 · U.S. Silver-Idaho, Inc.
## Details
- **Degree of injury:** ACCIDENT ONLY
- **Classification:** FALL OF ROOF OR BACK
- **Accident type:** Accident type, without injuries
- **Occupation:** —
- **Activity:** —
- **Injury source:** —
- **Nature of injury:** —
- **Body part:** —
- **Days lost:** —
- **Mine experience:** — years
## Operator
- **Controller:** Americas Gold and Silver Corporation
- **Operator:** U.S. Silver-Idaho, Inc.
- **Mine:** [1000082](https://api.ai-analytics.org/mine/1000082)
## Narrative

A large seismic event occurred at 2:47 pm today and located at the current face in 37-281. The event had a magnitude of 1.6 (moment magnitude) and 1.3 (local magnitude). It occurred 25 minutes after the round was shot and was preceded by at least one moderately large event that occurred immediately after blasting. 

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*Source: [MSHA Open Government Data](https://arlweb.msha.gov/OpenGovernmentData/) · AI Analytics · CC0 1.0*