Crevasse – Residency
4th sighting in Au'au Channel
Crevasse @53242
Mar 7 – Apr 7, 2026 · Au'au Channel
Deep Blue, My Calf Beside Me
Brought my own calf to the warm deep water this time.
171 m
Deepest dive
4:37
Longest dive
43
Dives
- Sightings
- 4
- Days between first and last sighting
- 31
- Deepest dive on record
- 171 m · this residency
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Mar 7, 2026 | 75 m | 24.7°C | 44 m |
| Mar 27, 2026 | 30 m | 24.4°C | 24 m |
| Apr 7, 2026 | 42 m | 24.5°C | 29 m |
| Apr 7, 2026 | 1,139 m | 24.7°C | 171 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
171 m
Deepest dive
4:37
Longest dive
43
Dives
20 m
Avg dive depth
4
Sightings
31
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 (1,139 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Apr 7, 2026
measured- Seafloor depth
- 1,139 m
- Sea-surface temperature
- 24.7°C
- Distance from shore
- 5.0 km
Across the residency · 4 sightings
measured- Seafloor depth
- 30 m – 1,139 m
- Sea-surface temperature
- 24.4°C – 24.7°C
- Distance from shore
- 2.0 km – 6.0 km
Sources: GEBCO seafloor grid · NOAA OISST sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 4 catalogued encounters on Happywhale.