Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
Salish Sea

HW-MN0524904 – Residency

3rd sighting in Salish Sea
Fluke of HW-MN0524904
HW-MN0524904 Confirmed in the catalog @153269
Sep 3 – Oct 12, 2026 · Salish Sea

Salish Sea · Sep – Oct 2026

91 m
Deepest dive
4:04
Longest dive
45
Dives
Sightings
3
Days between first and last sighting
39
Deepest dive on record
91 m · this residency

Dive stats modelled within real depth limits — not measured

Get actual dive data with Risa Deep →
SightingSeafloorSea tempDeepest dive (modelled)
Sep 3, 2026185 m15.0°C37 m
Sep 27, 2026253 m14.0°C91 m
Oct 12, 2026173 m10.5°C64 m

Seafloor and sea temperature measured · ✳ dives modelled

Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors

Deepest dive against the seafloor, per sighting

Seafloor · measured Deepest dive · modelled
Sep 3, 2026 — seafloor 185 m (measured), deepest dive 37 m (modelled)Sep 3Sep 27, 2026 — seafloor 253 m (measured), deepest dive 91 m (modelled)Sep 27Oct 12, 2026 — seafloor 173 m (measured), deepest dive 64 m (modelled)Oct 12

Depth runs down from the surface. The modelled dive never passes the measured seafloor at that sighting.

Dives

91 m
Deepest dive
4:04
Longest dive
45
Dives
24 m
Avg dive depth
3
Sightings
39
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010091 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (253 m) and the published dive-behaviour distribution. Modelled, not measured.

Deep Effort Score

Deep

Depth, duration and recovery resolved into a single number for this session.

Unlock with Risa Deep

Place

Where this happened · Sep 27, 2026

measured
Seafloor depth
253 m
Sea-surface temperature
14.0°C
Distance from shore
9.0 km

Across the residency · 3 sightings

measured
Seafloor depth
173 m – 253 m
Sea-surface temperature
10.5°C – 15.0°C
Distance from shore
8.0 km – 9.0 km

Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance

Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors

Source records

This activity is assembled from 3 catalogued encounters on Happywhale.

Sighting records from Happywhale, published as occurrence data via GBIF. Individual records are licensed CC0 1.0, CC BY 4.0 or CC BY-NC 4.0, depending on the contributor.

The photographs and fluke identifications behind every sighting are the work of the contributing observers — the citizen scientists, naturalists and operators who logged them, each named in the underlying GBIF occurrence record. Every activity links out to its source encounters on Happywhale. Basemaps © OpenStreetMap contributors (ODbL).

Happywhale runs on donations: support Happywhale →

Breach is an independent project. It is not affiliated with, nor endorsed by, Happywhale or GBIF.