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Monterey Bay

Afterglow – Residency

31st sighting in Monterey Bay
Fluke of Afterglow
Afterglow Confirmed in the catalog @95024
Jun 13 – Oct 20, 2025 · Monterey Bay

Monterey Bay · Jun – Oct 2025

207 m
Deepest dive
7:55
Longest dive
228
Dives
Sightings
20
Days between first and last sighting
129
Deepest dive on record
207 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jun 13, 202560 m—35 m
Jun 14, 202557 m—18 m
Jun 17, 202556 m—49 m
Aug 27, 2025436 m—114 m
Sep 1, 202580 m—21 m
Sep 3, 2025567 m—47 m
Sep 3, 202580 m—24 m
Oct 8, 2025254 m—97 m
Oct 8, 202560 m—38 m
Oct 9, 202522 m—20 m
Oct 9, 2025254 m—137 m
Oct 12, 2025228 m—91 m
Oct 13, 2025177 m—83 m
Oct 13, 2025254 m—106 m
Oct 15, 2025245 m—207 m
Oct 15, 2025179 m—65 m
Oct 17, 202573 m—52 m
Oct 20, 202533 m—29 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
Jun 13, 2025 — seafloor 60 m (measured), deepest dive 35 m (modelled)Jun 13Jun 14, 2025 — seafloor 57 m (measured), deepest dive 18 m (modelled)Jun 17, 2025 — seafloor 56 m (measured), deepest dive 49 m (modelled)Aug 27, 2025 — seafloor 436 m (measured), deepest dive 114 m (modelled)Sep 1, 2025 — seafloor 80 m (measured), deepest dive 21 m (modelled)Sep 1Sep 3, 2025 — seafloor 567 m (measured), deepest dive 47 m (modelled)Sep 3, 2025 — seafloor 80 m (measured), deepest dive 24 m (modelled)Oct 8, 2025 — seafloor 254 m (measured), deepest dive 97 m (modelled)Oct 8, 2025 — seafloor 60 m (measured), deepest dive 38 m (modelled)Oct 8Oct 9, 2025 — seafloor 22 m (measured), deepest dive 20 m (modelled)Oct 9, 2025 — seafloor 254 m (measured), deepest dive 137 m (modelled)Oct 12, 2025 — seafloor 228 m (measured), deepest dive 91 m (modelled)Oct 13, 2025 — seafloor 177 m (measured), deepest dive 83 m (modelled)Oct 13Oct 13, 2025 — seafloor 254 m (measured), deepest dive 106 m (modelled)Oct 15, 2025 — seafloor 245 m (measured), deepest dive 207 m (modelled)Oct 15, 2025 — seafloor 179 m (measured), deepest dive 65 m (modelled)Oct 17, 2025 — seafloor 73 m (measured), deepest dive 52 m (modelled)Oct 17Oct 20, 2025 — seafloor 33 m (measured), deepest dive 29 m (modelled)Oct 20, 2025 — seafloor 26 m (measured), deepest dive 20 m (modelled)Oct 20, 2025 — seafloor 69 m (measured), deepest dive 52 m (modelled)

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

Dives

207 m
Deepest dive
7:55
Longest dive
228
Dives
25 m
Avg dive depth
20
Sightings
129
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
0125250207 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (245 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 · Oct 15, 2025

measured
Seafloor depth
245 m
Sea-surface temperature
—
Distance from shore
4.0 km

Across the residency · 20 sightings

measured
Seafloor depth
22 m – 567 m
Sea-surface temperature
—
Distance from shore
2.0 km – 16.0 km

Sources: GEBCO seafloor grid · PacIOOS coastline distance

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

Source records

This activity is assembled from 20 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.