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

Moth-man – Residency

2nd sighting in Chatham Strait
Fluke of Moth-man
Moth-man Confirmed in the catalog @57895
May 31 – Aug 6, 2026 · Chatham Strait

Chatham Strait, high tide summer

Cold water met me right on schedule, and I got photographed twice enjoying it.

103 m
Deepest dive
3:32
Longest dive
17
Dives
Sightings
2
Days between first and last sighting
66
Deepest dive on record
103 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
May 31, 2026100 m8.6°C48 m
Aug 6, 2026599 m12.9°C103 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
May 31, 2026 — seafloor 100 m (measured), deepest dive 48 m (modelled)May 31Aug 6, 2026 — seafloor 599 m (measured), deepest dive 103 m (modelled)Aug 6

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

Dives

103 m
Deepest dive
3:32
Longest dive
17
Dives
26 m
Avg dive depth
2
Sightings
66
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
075150103 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (599 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.

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Place

Where this happened · Aug 6, 2026

measured
Seafloor depth
599 m
Sea-surface temperature
12.9°C
Distance from shore
3.0 km

Across the residency · 2 sightings

measured
Seafloor depth
100 m – 599 m
Sea-surface temperature
8.6°C – 12.9°C
Distance from shore
3.0 km – 5.0 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 2 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).

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