# FALL OF ROOF OR BACK
> MSHA accident `220112940017` · 10/18/2011 · 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:** 0
- **Mine experience:** — years
## Operator
- **Controller:** U S Silver Corporation
- **Operator:** U.S. Silver-Idaho, Inc.
- **Mine:** [1000082](https://api.morvs.ai/mine/1000082)
## Narrative

A seismic event occurred near the 185 raise on 4900 that dislodged approximately 1/2 to 2/3 of a car of muck from the raise that was deposited at the bottom.

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