| # | Name | Pressure | Motion | Recording (months) | Comments (m) |
|---|---|---|---|---|---|
| IFREMER-UBO (France) | |||||
| 15 | oldOBS | Hydrophone | 1C 2.2Hz? | 1 | |
| 55 | MicrOBS | Hydrophone | 3C 4.5Hz | 0.25-0.5 | |
| 10 | LotOBS | Hydrophone | 3C 4.5Hz | 6 | |
| GeoAzur (France) | |||||
| 24 | Hippocampe | Hydrophone | 3C 30s or 60s (20) 3C 4.5 Hz (20) | 6 | Soon 12 months |
| 10 | Ladybug | Hydrophone | 3C 4.5 Hz | ? | 10 more under construction |
| INSU-IPGP (France) | |||||
| 18 | SP-OBS | Hydrophone | 3C 4.5 Hz | 14 | |
| 9 | BB-OBS | DPG | 3C 240s | 12 | |
| GEOMAR (Germany) | |||||
| 25 | OBH | Hydrophone | ----- | 1 | 20 years old |
| 80 | OBS | Hydrophone | 3C 4.5 Hz | 6-12 | 3 generations, a few broadband |
| AWI-DEPAS (Germany) | |||||
| 68 | OBS | ULF Hydrophone | 3C 60s | 12 | to 6000 m depth |
| 12 | OBS | ULF Hydrophone | 3C 60s | 8 | to 7300 m depth |
| SeisUK (United Kingdom) | |||||
| 50 | OBS | Hydrophone (50) DPG (9) | 3C 4.5 Hz (50) 3C 120s compact (15) | 9? | |
| CSIC (Spain) | |||||
| 17 | LC 4x4 | Hydrophone | 3C 4.5 Hz | 12 | |
| INGV (Italy) | |||||
| 8 | BBOBS | ULF Hydrophone or DPG | 3C 60 s | 12 | |
| IDL (Portugal) | |||||
| 4 | 2008OBS | Hydrophone? | 3C 60 s | 6 | |
| 6 | BB iOBS | Hydrophone? | 3C 4.5 Hz | 12 | |
| ROA (Spain) | |||||
| 3 | LOBSTER | ULF Hydrophone | 3C 60 s | 18 (@50 sps) | In process to acquire 3 more |