Ratchet – Residency
163rd sighting in Monterey Bay
Ratchet @7272
Aug 11 – Sep 22, 2025 · Monterey Bay
Monterey Bay · Aug – Sep 2025
75 m
Deepest dive
3:18
Longest dive
47
Dives
- Sightings
- 5
- Days between first and last sighting
- 42
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Aug 11, 2025 | 100 m | 15.5°C | 54 m |
| Aug 16, 2025 | 147 m | 15.5°C | 32 m |
| Aug 16, 2025 | 558 m | 15.6°C | 41 m |
| Sep 3, 2025 | 87 m | 16.9°C | 58 m |
| Sep 22, 2025 | 235 m | 17.3°C | 75 m |
Seafloor and sea temperature measured · ✳ dives modelled
Deepest dive against the seafloor, per sighting
Seafloor · measured Deepest dive · modelledDepth runs down from the surface. The modelled dive never passes the measured seafloor at that sighting.
Dives
75 m
Deepest dive
3:18
Longest dive
47
Dives
24 m
Avg dive depth
5
Sightings
42
Days first → last
Dive metrics are modelled within real depth limits — not measured
Get actual dive data with Risa Deep →Dive profile
modelledDepth shaped by the seafloor limit here (235 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Sep 22, 2025
measured- Seafloor depth
- 235 m
- Sea-surface temperature
- 17.3°C
- Distance from shore
- 5.0 km
Across the residency · 5 sightings
measured- Seafloor depth
- 87 m – 558 m
- Sea-surface temperature
- 15.5°C – 17.3°C
- Distance from shore
- 3.0 km – 8.0 km
Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 5 catalogued encounters on Happywhale.