Tanzania – Residency
5th sighting in Gulf of Maine
Tanzania @131567
Sep 9 – 13, 2026 · Gulf of Maine
September Green Water
Cold Gulf water, good company, plenty more tail to show yet.
28 m
Deepest dive
1:55
Longest dive
24
Dives
- Sightings
- 3
- Days between first and last sighting
- 4
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Sep 9, 2026 | 28 m | — | 19 m |
| Sep 10, 2026 | 32 m | 19.5°C | 27 m |
| Sep 13, 2026 | 62 m | — | 28 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
28 m
Deepest dive
1:55
Longest dive
24
Dives
14 m
Avg dive depth
3
Sightings
4
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 (62 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Sep 13, 2026
measured- Seafloor depth
- 62 m
- Sea-surface temperature
- —
- Distance from shore
- 19.0 km
Across the residency · 3 sightings
measured- Seafloor depth
- 28 m – 62 m
- Sea-surface temperature
- 19.5°C
- Distance from shore
- 17.0 km – 25.0 km
Sources: GEBCO seafloor grid · PacIOOS coastline distance
Source records
This activity is assembled from 3 catalogued encounters on Happywhale.