| Clue | Source | Date |
|---|---|---|
| Salt shaker | Newsday | 03 May 2025 |
| In the main, it’s a source of upheaval | The Times Cryptic | 14 Nov 2023 |
| Big ocean motion | Eugene Sheffer | 24 Nov 2021 |
| In the main it constitutes a seismic convulsion | ||
| Cause of a tidal wave | USA Today | 14 Aug 2017 |
| Cause of a tidal wave | ||
| Tsunami cause, perhaps | ||
| Deep shaking | ||
| Source of some big waves | ||
| Tsunami cause | ||
| Sub shaker |