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

Fallon – Residency

146th sighting in Monterey Bay
Fluke of Fallon
Fallon Confirmed in the catalog @4517
Apr 22 – Oct 11, 2025 · Monterey Bay

Monterey Bay · Apr – Oct 2025

119 m
Deepest dive
4:47
Longest dive
98
Dives
Sightings
7
Days between first and last sighting
172

Dive stats modelled within real depth limits — not measured

Get actual dive data with Risa Deep →
SightingSeafloorSea tempDeepest dive (modelled)
Apr 22, 202558 m13.0°C35 m
May 29, 2025548 m13.9°C42 m
Aug 5, 2025484 m14.9°C57 m
Aug 5, 2025178 m14.9°C119 m
Aug 22, 202553 m14.1°C27 m
Sep 29, 202546 m17.2°C36 m
Oct 11, 2025488 m16.8°C84 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
Apr 22, 2025 — seafloor 58 m (measured), deepest dive 35 m (modelled)Apr 22May 29, 2025 — seafloor 548 m (measured), deepest dive 42 m (modelled)May 29Aug 5, 2025 — seafloor 484 m (measured), deepest dive 57 m (modelled)Aug 5Aug 5, 2025 — seafloor 178 m (measured), deepest dive 119 m (modelled)Aug 5Aug 22, 2025 — seafloor 53 m (measured), deepest dive 27 m (modelled)Aug 22Sep 29, 2025 — seafloor 46 m (measured), deepest dive 36 m (modelled)Sep 29Oct 11, 2025 — seafloor 488 m (measured), deepest dive 84 m (modelled)Oct 11

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

Dives

119 m
Deepest dive
4:47
Longest dive
98
Dives
20 m
Avg dive depth
7
Sightings
172
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
075150119 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (178 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 · Aug 5, 2025

measured
Seafloor depth
178 m
Sea-surface temperature
14.9°C
Distance from shore
6.0 km

Across the residency · 7 sightings

measured
Seafloor depth
46 m – 548 m
Sea-surface temperature
13.0°C – 17.2°C
Distance from shore
2.0 km – 16.0 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 7 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.