| Abbreviation | Definition |
|---|---|
| EPLR | Eberhart Point, Little River Canyon |
| EPSA | Exploration and Production Sharing Agreement |
| EQF | Earthquake force (AS seismic force) |
| ERDAS | Earth Resource Data Analysis System |
| ERDS | Extended Reach Drilling Simulator |
| ERE | Enhanced Revised Evolved |
| ERG | Eel River - Garberville |
| ERSS | Earth Retaining Stabilizing Structure |
| ERZ | Eastern Roscoelite Zone |
| ESDB | European Soil Database |
| ESDT | Earth Science Data Type |
| ESLI | Earth Science Literacy Initiative |
| ETA | Erroding Terrain Asilar |
| ETAP | Eastern Trough Area Project |
| EtOH | Ethyl Alcohol (Ethanol) |
| EUSW | Estimated Utilizable Surface Water |
| EW | East-West |
| F | Field |
| F | Filling |
| FA | Fine Aggregate |