[ACOUSTIC_MANIFEST_RECOVERY]
SUMMARY: An ultra-low-frequency, high-amplitude underwater sound detected by the NOAA Equatorial Pacific Ocean autonomous hydrophone array. The sound was traced to a remote point west of the southern tip of South America.
| SIGNAL_TYPE: | Non-periodic / Frequency-modulated |
| DETECTION_RANGE: | 5,000+ Kilometers |
| EST_SOURCE_SIZE: | Exceeds known biological limits [DISPUTED] |
| OFFICIAL_STATUS: | Icequake / Glacial Calving [VERIFICATION_REQUIRED] |
"THE PROFILE MATCHES BIOLOGICAL ORIGIN BUT THE SCALE IS IMPOSSIBLE."