The 25 Minutes That Disappeared: MH370, Diego Garcia, and the Hydrophone Data Gap
Introduction
In my previous post “Was Flight MH370 Teleported?”, I broke down two viral videos that appear to show MH370 being surrounded by glowing orbs before vanishing in a flash of light. Whether you believe those videos are real or fake, one thing is clear: they sparked renewed interest in alternative theories about what happened to Flight 370.
But here is the thing. If those videos are real, there should be physical evidence. An event violent enough to make a Boeing 777 disappear would generate acoustic signatures detectable by underwater sensors thousands of kilometers away.
The Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) operates a network of highly sensitive underwater hydrophones throughout the world's oceans. These hydrophones are designed to detect nuclear explosions, but they can also pick up aircraft impacts, underwater explosions, and other violent events.
So what did those hydrophones record on March 8, 2014?
The answer is complicated. They recorded something. But more importantly, they recorded nothing during a critical 25-minute window at the station closest to Diego Garcia.
The Players: CTBTO Hydrophone Stations
The CTBTO operates hydroacoustic monitoring stations throughout the Indian Ocean. Three are particularly relevant to MH370:
| Station | Location | Code |
|---|---|---|
| HA01 | Cape Leeuwin, Western Australia | H01W |
| HA08 | Diego Garcia, British Indian Ocean Territory | H08S/H08N |
| HA04 | Crozet Islands, France | H04S |
Each station consists of three hydrophones arranged in a triangular configuration, allowing researchers to determine both the bearing and approximate distance of acoustic events.
Diego Garcia is the location of HA08. It is also a remote coral atoll hosting a major U.S. military installation, Naval Support Facility Diego Garcia, which is shrouded in secrecy. The island has a 12,000-foot runway capable of handling any aircraft in the world.
Remember from Part 1: the coordinates embedded in the “satellite” video are approximately -8.834301, 93.19492, which places the supposed event south of the Nicobar Islands. Diego Garcia sits at approximately 7.3°S, 72.4°E. The distance between these two points is roughly 2,300 km.
Anomaly #1: The 25-Minute Data Gap
What Happened
At 03:07 UTC on March 8, 2014, all three hydrophones at the Diego Garcia station (HA08s) simultaneously stopped recording. They remained offline for exactly 25 minutes.
This is documented in a peer-reviewed paper by Dr. Usama Kadri of Cardiff University, published in Scientific Reports (Nature):
“A fifth signal appears at 3:07... This signal probably indicates restarting the system after it was shutdown for 25 minutes, i.e. there is missing data in these specific CTBTO recordings.”
Why This Matters
Dr. Kadri explicitly addresses the suspicious nature of this gap:
“Due to the sensitivity of the recorded data, it is unlikely that the three hydrophones on HA08s had a simultaneous technical failure and the reason behind the shut down is to-date unknown.”
He then offers a possible explanation:
“A violent nearby activity (including impact, explosion) could have resulted in a shutdown of the system.”
Let that sink in. A scientist publishing in one of the world's most prestigious journals is stating on the record that:
- A simultaneous failure of all three hydrophones is “unlikely”
- The shutdown remains “unexplained” by the CTBTO
- A violent nearby event, such as an aircraft impact or explosion, could cause such a shutdown
The Timeline and the Videos
The official narrative places MH370's crash at approximately 00:19 UTC on March 8, 2014, based on the final satellite “handshake.” But the Diego Garcia data gap occurs nearly 3 hours later.
Here is where it gets interesting. If you plot MH370's trajectory based on the coordinates in the video (-8.834301, 93.19492), the plane would have been in that area sometime between 00:30 and 01:30 UTC. The acoustic signal from such an event, depending on propagation path, would take anywhere from 30 minutes to 2 hours to reach Diego Garcia.
| Time (UTC) | Event |
|---|---|
| 18:22, March 7 | Last radar contact with MH370 |
| 00:19, March 8 | Final satellite handshake (official crash time) |
| ~00:30-01:30, March 8 | Estimated time at video coordinates (if direct flight from last radar) |
| 01:58, March 8 | Signal HA_32 detected at Diego Garcia (military bearing) |
| 03:07, March 8 | All three Diego Garcia hydrophones go offline |
| 03:32, March 8 | System comes back online |
| 03:47-03:55, March 8 | Three signals detected at nearly identical bearings (~170°) |
If an acoustic event occurred at the video coordinates around 01:00-01:30 UTC, the signal would reach Diego Garcia somewhere between 02:30 and 03:30 UTC, depending on transmission path through the water and sea-bottom.
The data gap starts at 03:07 UTC. Right in the middle of that window.
Coincidence?
Anomaly #2: Diego Garcia Data “Dismissed” as Too Noisy
The Convenient Excuse
When the U.S. Los Alamos National Laboratory (LANL) analyzed CTBTO hydrophone data for MH370, they focused almost exclusively on the Cape Leeuwin (HA01) station. The Diego Garcia data? Dismissed.
From the official LANL report:
“Analysis of the data from these stations shows... large amplitude repeating signals at H08 that obscure any possible arrivals.”
The “noise” was attributed to seismic survey ships operating in the region. This explanation has been accepted uncritically by most researchers.
Dr. Alec Duncan's Assessment
Dr. Alec Duncan of Curtin University, who led the Australian acoustic analysis effort, also found the Diego Garcia data “unusable”:
“Duncan also analysed data from the other [station], off Diego Garcia island in the middle of the Indian Ocean, but found nothing. The data were too polluted by noises from seismic surveys, he says.”
Butler, D. (2014). Sound clue in hunt for MH370. Nature, 510, 199-200.
The Signal That Pointed Northwest
Here is what makes this dismissal suspicious. Duncan did find a promising signal at Cape Leeuwin, one that pointed to a location northwest of the official search area:
“The sound is believed to have originated somewhere along a strip running to the northwest of the Indian Ocean. That is out of the range of the current search.”
Curtin University's refined location estimate (September 2014) placed the signal origin at 2.11°N, 69.31°E, west of the Maldives, much closer to Diego Garcia than to the 7th arc search area.
This location is roughly 1,100 km from Diego Garcia. And it is within the general region suggested by the video coordinates.
This finding was dismissed as “inconsistent with other data about aircraft position,” meaning the satellite handshake data that forms the entire basis for the southern search.
Anomaly #3: Military Activity Detected During the Critical Window
What the Hydrophones Recorded
Kadri's 2019 paper documents military activity detected by the Diego Garcia hydrophones during the critical timeframe:
“Analyses of signals recorded at station HA08s... were more challenging, partially due to disturbances in the recordings that are believed to have been caused by military action in the region.”
The military signals were detected at two specific bearings:
- 219.2° from HA08s (southwest toward Mauritius/Madagascar)
- 309.7° from HA08s (northwest toward Maldives/India)
These signals were recorded “intermittently” between 23:00 UTC on March 7 and 04:00 UTC on March 8, precisely the window when MH370 would have been in the area.
The Signals from Table 3
| Signal | Time (UTC) | Bearing | Distance | Location | Notes |
|---|---|---|---|---|---|
| HA_30 | 11:57 (Mar 7) | 247.4° | 585±276 km | 9°34'S, 67°36'E | Closest to Diego Garcia |
| HA_31 | 12:11 (Mar 7) | 170.9° | 2,300±250 km | 28°08'S, 76°20'E | |
| HA_32 | 01:58 (Mar 8) | 241.3° | 2,860±900 km | 19°05'S, 48°32'E | Within military bearings |
| HA_34a | 03:47 (Mar 8) | 170.9° | — | — | Immediately after restart |
| HA_34b | 03:50 (Mar 8) | 173.0° | — | — | Immediately after restart |
| HA_34c | 03:55 (Mar 8) | 170.9° | — | — | Immediately after restart |
Notice the sequence immediately after the system came back online: three signals at nearly identical bearings (~170°) detected within 8 minutes. What did the hydrophones capture the moment they resumed recording?
Kadri notes:
“Note that bearings of signals HA30 and HA32 fall within the military action bearings, so it is also possible that the signals are associated with the military action.”
Connecting to the Videos
In Part 1, I discussed how the videos appear to show military surveillance footage, specifically what looks like Gorgon Stare imagery from an MQ-9 Reaper drone. The second “drone” video shows the same event from a different angle.
If the U.S. military was operating surveillance drones in that area, and if something happened to MH370 that they witnessed (or caused), the “military action” detected by the hydrophones could be related.
Anomaly #4: Cocos Keeling Infrasound Data Never Released
The Silent Witnesses
Cocos Keeling Island sits in the Indian Ocean between the Maldives and Australia. It hosts an array of eight infrasound recorders that were continuously collecting data during MH370's disappearance.
This data has never been made public.
From 370Location.org:
“There is an array of eight infrasound recorders at Cocos Keeling West Island that was continuously collecting data during the flight of MH370. That data has been unavailable to the public.”
Why This Matters for the Videos
Remember: if MH370 flew toward Diego Garcia (as some theories suggest), it would have passed directly over or near Cocos Keeling Island. Infrasound recorders would have detected the aircraft's engine noise.
Even more intriguing, according to 370Location.org:
“Seismometer data shows a unique signal at the expected MH370 flyby time with Doppler shift indications.”
A Doppler shift indicates a moving source, exactly what you would expect from an aircraft flying past at high speed.
If the infrasound data showed MH370 heading northwest toward Diego Garcia rather than south toward the 7th arc, that would directly contradict the official narrative.
The Pattern of Suppression
When you step back and look at the acoustic evidence holistically, a troubling pattern emerges:
| Data Source | Status | Official Explanation |
|---|---|---|
| Diego Garcia (HA08) hydrophones | Dismissed | "Too noisy from seismic surveys" |
| 25-minute data gap | Unexplained | None provided by CTBTO |
| Cocos Keeling infrasound | Classified | "No evidence found" (methodology flawed) |
| Crozet Islands (HA04) | Never Analyzed | Not addressed |
| Military activity signals | Unexamined | Attributed to exercises |
| Curtin University signal | Dismissed | "Inconsistent with satellite data" |
Every piece of evidence that could point toward Diego Garcia has been either dismissed, classified, or left unexplained.
The “Javanomaly”: A Strong Unexplained Signal
Independent researchers have identified additional signals that warrant investigation. One of the most compelling is what 370Location.org calls the “Javanomaly”:
“A very strong MH370 candidate signal was reported here a year ago, arriving at the Diego Garcia H08 hydrophone array from the direction of Java. The T-wave arrival is far stronger than a later M4.4 quake near Java and four times stronger on local seismometers than a nearby M4.1 quake.”
What makes this signal suspicious:
“Despite the stronger signals, this event was not included in earthquake catalogs like the others. Analysis of nearby seismometers places the origin as 8.36S 107.92E directly on the 7th Arc at 1:15:18 UTC, almost an hour after the expected impact time.”
Source: 370Location.org: A Strong Anomalous Acoustic Event on the Seventh Arc near Java
Tying It Together: What the Hydrophone Data Means for the Videos
If the videos fromPart 1 are real, they show MH370 being surrounded by orbs and disappearing in a flash of light. Such an event would generate multiple types of acoustic signatures:
- The initial event: Whatever energy was released when the orbs activated would create a pressure wave
- Aircraft impact/displacement: The sudden movement or destruction of a 200-ton aircraft would generate acoustic signals
- Possible implosion: If parts of the aircraft sank to depth, implosion of pressurized compartments would create additional signals
The timeline fits uncomfortably well:
| Theoretical Event | Time (UTC) | Supporting Evidence |
|---|---|---|
| "Teleportation" event at video coordinates | ~01:00-01:30 | Video timestamp, flight path calculations |
| Signal HA_32 at Diego Garcia | 01:58 | Detected at military bearing |
| Acoustic waves reach Diego Garcia | ~02:30-03:30 | Based on propagation calculations |
| Diego Garcia hydrophones shut down | 03:07 | 25-minute gap begins |
| System restarts | 03:32 | |
| Three signals at ~170° bearing | 03:47-03:55 | Captured immediately after restart |
The data gap occurs exactly when acoustic evidence of the event would be arriving at Diego Garcia.
What Would Prove or Disprove This Theory?
Several pieces of evidence could definitively address the connection between the videos and the hydrophone data:
1. The Missing 25 Minutes
The CTBTO should release whatever diagnostic data exists from the HA08s station between 03:07 and 03:32 UTC. If the system was truly “shutdown” by a violent event, there should be evidence of what caused it.
2. Cocos Keeling Infrasound Data
If MH370 flew toward the video coordinates (near the Nicobar Islands), infrasound would have detected it. Release the data.
3. Full Diego Garcia Recordings
Not just the data that was deemed “too noisy,” but all recordings from 23:00 March 7 to 04:00 March 8, with proper signal filtering applied.
4. HA04 Crozet Islands Cross-Reference
A third station could triangulate any signals and provide much more precise location data. This analysis has apparently never been done.
5. Raw Satellite Footage
If the U.S. military was operating Gorgon Stare surveillance in the area (as the videos suggest), they have the original, uncompressed footage. Release it.
Conclusion: The Sound of Silence
The hydroacoustic evidence surrounding MH370's disappearance is characterized not by what was detected, but by what was silenced.
In Part 1, I laid out the evidence for and against the authenticity of the videos showing MH370 surrounded by orbs. I noted the extraordinary technical details, the suspicious “debunks” that seemed planted, and the connections to Diego Garcia.
Now we have another piece of the puzzle: 25 minutes of missing data from the hydrophone station closest to Diego Garcia, occurring exactly when acoustic evidence of a violent event would be expected to arrive.
Dr. Kadri's peer-reviewed research explicitly states that the simultaneous shutdown of all three hydrophones is “unlikely” to be a technical failure. He suggests a “violent nearby activity (including impact, explosion)” could cause such a shutdown.
The question is not whether the evidence exists. The question is why it has been systematically dismissed, classified, or erased.
If those videos are real, if MH370 was intercepted by some form of advanced technology, the hydrophone data gap is exactly what you would expect. Not evidence of what happened, but evidence of a cover-up.
Ten years after MH370 vanished, 239 families still have no answers. Perhaps those answers lie not in the depths of the southern Indian Ocean, but in the 25 minutes of silence from a hydrophone station in the shadow of a secret military base.
Sources & Further Reading
Primary Scientific Sources
Kadri, U. (2019). Effect of sea-bottom elasticity on the propagation of acoustic-gravity waves from impacting objects. Scientific Reports, 9, 912.
- DOI: 10.1038/s41598-018-37626-z
- Direct link: https://www.nature.com/articles/s41598-018-37626-z
Kadri, U. (2024). Underwater acoustic analysis reveals unique pressure signals associated with aircraft crashes in the sea: revisiting MH370. Scientific Reports, 14, 10102.
- DOI: 10.1038/s41598-024-60529-1
- Direct link: https://www.nature.com/articles/s41598-024-60529-1
Stead, R.J. (2014). Seismic and hydroacoustic analysis relevant to MH370. Los Alamos National Laboratory, LA-UR-14-24972.
Stead, R.J. (2014). How Common are Noise Sources on the Crash Arc. Los Alamos National Laboratory, LA-UR-14-28179.
Butler, D. (2014). Sound clue in hunt for MH370. Nature, 510, 199-200.
- Direct link: https://www.nature.com/articles/510199a
Independent Research
- 370Location.org – Flight MH370 Acoustic Location
- Main site: https://370location.org/
- Javanomaly analysis: https://370location.org/2018/02/a-strong-anomalous-acoustic-event-on-the-seventh-arc-near-java/
Read Part 1: Was Flight MH370 Teleported?
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