- Ground-motion model is:
where A is in cm∕s2, c

_{1}= -1.3489, c_{2}= 1.0095, b = 0.1956, c_{3}= 0.1272 and σ = 0.20. - Use data from one station.
- Data from rockbursts in mines in the Kolar Gold Fields.
- Exclude records with r
_{hypo}< 1km due to large change in PGAs in near-source region. - Regress data using log(A) = -blog(X)+c for data binned in 5 0.2 magnitude unit bins from 2.0 upwards.
- Also regress data using log(A) = aM - blog(X) + c.
- Also regress using log(A) = c
_{1}+ c_{2}M -bc_{4}log(X + e^{c3M}) (sic) but find c_{4}has a very large standard error so remove it. - Compare predictions and observations for M2.1, 2.3, 2.5, 2.7 and 2.9.