Eufrazzsia – Residency
30th sighting in Chatham Strait
Eufrazzsia @24114
Jun 20 – Sep 28, 2025 · Chatham Strait
Chatham Strait · Jun – Sep 2025
136 m
Deepest dive
4:34
Longest dive
62
Dives
- Sightings
- 5
- Days between first and last sighting
- 100
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Jun 20, 2025 | 159 m | — | 32 m |
| Jun 21, 2025 | 27 m | — | 22 m |
| Jul 19, 2025 | 158 m | — | 136 m |
| Sep 18, 2025 | 32 m | — | 27 m |
| Sep 28, 2025 | 76 m | — | 32 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
136 m
Deepest dive
4:34
Longest dive
62
Dives
20 m
Avg dive depth
5
Sightings
100
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 (158 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Jul 19, 2025
measured- Seafloor depth
- 158 m
- Sea-surface temperature
- —
- Distance from shore
- 4.0 km
Across the residency · 5 sightings
measured- Seafloor depth
- 27 m – 159 m
- Sea-surface temperature
- —
- Distance from shore
- 1.0 km – 5.0 km
Sources: GEBCO seafloor grid · PacIOOS coastline distance
Source records
This activity is assembled from 5 catalogued encounters on Happywhale.