SEAK-5118 – Residency
4th sighting in Chatham Strait
SEAK-5118 @16817
Jul 22 – Aug 8, 2026 · Chatham Strait
Chatham Strait, mid-summer
Cliffs in view, green water, lens found me twice this stretch.
98 m
Deepest dive
2:56
Longest dive
13
Dives
- Sightings
- 2
- Days between first and last sighting
- 17
- Deepest dive on record
- 98 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) |
|---|---|---|---|
| Jul 22, 2026 | 214 m | 12.9°C | 98 m |
| Aug 8, 2026 | 178 m | 12.8°C | 18 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
98 m
Deepest dive
2:56
Longest dive
13
Dives
19 m
Avg dive depth
2
Sightings
17
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 (214 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Jul 22, 2026
measured- Seafloor depth
- 214 m
- Sea-surface temperature
- 12.9°C
- Distance from shore
- 2.0 km
Across the residency · 2 sightings
measured- Seafloor depth
- 178 m – 214 m
- Sea-surface temperature
- 12.8°C – 12.9°C
- Distance from shore
- 2.0 km – 3.0 km
Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 2 catalogued encounters on Happywhale.