Percentage of failures for each location of failure and for all locations grouped by wind speeds less than or equal to 5 mph (8 kph).
| Location of failure | Q. agrifolia | Hardwoods | Eucalyptus | Conifers | Q. lobata | Other oaks |
|---|---|---|---|---|---|---|
| Trunk (%) | 52 | 17 | 28 | 24 | 73 | 59 |
| Branch (%) | 63 | 32 | 28 | 28 | 52 | 53 |
| Root (%) | 36 | 8 | 12 | 17 | 46 | 17 |
| All locations (%) | 49 | 19 | 25 | 25 | 57 | 36 |