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Item #: SCP-XXXX

Object Class: Euclid Keter1

Threat Level(s): 1/Notice / 5/Critical

Special Containment Procedures: The SCPF Volos is to track and monitor SCP-XXXX at all times. If the subject's projected path should have it approaching another instance of its species, regardless of the specimen's sex, MTF Psi-19 ("Sharkive") is to intervene and prevent contact by redirecting the other specimen. If contact cannot be prevented, personnel are to distance themselves as far from the subject as quickly as possible and evacuate any nearby civilians.

The leaders of nations possessing nuclear armaments have been made aware of the nature of SCP-XXXX; in the event that personnel are unable to prevent a detonation event, said leaders are to immediately be made aware of the occurrence. Remaining effects of detonation events are to be obscured from public knowledge, with appropriate cover stories disseminated as necessary.

Description: SCP-XXXX denotes a male Rhincodon typus2 of unknown age measuring 11 meters in length, currently located in the Atlantic ocean. Aside from its minor anomalous characteristics, including negligible senescence, immunity to physical trauma, and capacity to survive in waters outside its species' typical range, SCP-XXXX is generally harmless so long as its primary anomalous ability is not triggered. When not feeding, SCP-XXXX will seek out females of its species.

SCP-XXXX's primary anomalous property manifests when it is brought to orgasm, whereupon it will immediately "detonate," releasing massive amounts of energy and radiation into its immediate environment in the form of a powerful explosion. Typically possessing a power output of about 2×106 GJ of energy3, this process highly visually resembles the detonation of a nuclear weapon.

SCP-XXXX and its mate are not harmed during this process, though surrounding environments will typically be obliterated. If fertilization is successful, SCP-XXXX's mate will bear offspring as normal, though in slightly larger quantities than a standard pregnancy; the resulting pups are non-anomalous.

SCP-XXXX has physically resisted every attempt at direct redirection or extraction from the ocean, and as a potential side effect of its radiative qualities, always releases large amounts of radiation while doing so. As such, relocation of the subject to secure holding has been deemed unfeasible.


Bhangmeter patterns detected by an American Vela Hotel satellite during the detonation on September 22, 1979.

Discovery: SCP-XXXX was first discovered during the Vela Incident, in which a double flash of light was observed in the vicinity of the Prince Edward Islands on September 22, 1979. Indicative of a nuclear detonation4, measures to discover the responsible party and check for anomalous influence began. A marine biology team nearby at the time reported to inquiring agents that it had been studying a male whale shark exhibiting abnornal behavior and had entered the area to mate, though the group lost had lost track of it following the double flash.

After being located west of the islands, SCP-XXXX and its mate were tagged with GPS trackers and left to be monitored by a pair of research teams and designated as Objects of Interest 3749-A and 3749-B respectively. Following extensive analysis by the team assigned to 3749-B, it was confirmed that that specimen lacked any anomalous properties.

Incident XXXX-Alpha: On February 29, 1980 contact was lost with 3749-A's research team; at the same time, a double flash was detected in the southern Pacific ocean near the last logged location of the specimen. A series of transmissions from the team were later received by a Foundation outpost near Mount Siple, Antarctica, consisting of a video file and emergency broadcast. The video file has been transcribed below.


DATE: Feb 29, 1980

NOTE: This was the last transmission from Object of Interest 3749-A's research team prior losing contact with command.


A part of the footage transmitted appears to have been corrupted by the presence of powerful electromagnetic interference as it was being broadcast. As such, only a small portion of the original file is playable.

As the playable portion opens, the camera is facing the floor, being handled.

Researcher A: Okay, what now?

Researcher B: (Off screen.) Nothing yet. He's approaching the female slowly, but doesn't appear to be making a move, so to speak.

Researcher A: (Sighs.) Seriously, what did we do to deserve this? We get pulled into this secret operation to save the world from inexplicable horrors, and we have the all-important job of watching two whales fuck.

Researcher B: First off, they're not whales, they're sharks.

Researcher C: Knock it off you two. Just observe and record. The other 3749-B got checked off, so this is just a waiting game.

(The camera pans up to show the ocean. SCP-XXXX's primary dorsal fin can be seen breaching the surface about 50 meters from the boat.)

Researcher A: Yeah, there he goes. Is the underwater cam recording, Grant?

Researcher B: (Flatly.) No worries, it's capturing every thrilling second of this.

(The dorsal fin dips below the water for a moment, followed by wild splashing.)

Researcher C: (Approaches the railing, coming into frame.) Aren't these fellas endangered anyway?

Researcher B: Think so.

Researcher C: (Giggles.) guess you could say we're witnessing an act of environmental recovery or something then.

Researcher B: (Dramatic sigh.) I swear to god, I'm transferring as soon as we get back to… (she trails off and approaches the railing, coming into frame.)

Researcher A: The hell is that?

(A bright light begins emanating from beneath the water and soon SCP-XXXX can be clearly seen glowing. The mate is close to the subject but does not appear to be exhibiting the same behavior.)

Researcher C: Yuki, start broadcasting on the secure channel now, I'm calling command.

(Researcher C sprints out of frame. Researcher A places the camera on a table, still recording the scene. The sound of a clacking keyboard can be heard nearby.)

Researcher A: (To self.) You've gotta be kidding me.

(Turns towards Researcher A, then back at SCP-XXXX.)

Researcher B: Don't tell me that blast was…

Researcher C: (Off screen, faintly audible.) Hello? This is O.o.I. 3749-A's research vessel reporting, verification code "Charlie, Romeo, Oscar, Whiskey thirty-four." We have confirmation, the object is anomalous. Circumstances of the anomaly are unclear but…

(A loud humming becomes audible, and SCP-XXXX begins to glow brighter.)

Researcher A: Aw come o—

(Two frames of the subject brightening are recorded before SCP-XXXX detonates, vaporizing the recording camera, as well as the entire research vessel.)


After the above transmission was reviewed, the last known location of the vessel was searched for wreckage. SCP-XXXX and the mate were located near ground zero. No survivors were found.

Addendum XXXX.1: Detonation instances

Since its discovery, SCP-XXXX has detonated a total of seven times, although

Date of Occurrence Location Notes Follow-up
8/22/1979 Prince Edward Islands First record of SCP-XXXX activity The unexpected nature of the event caused insufficient cover-up and civilian awareness of the event. South Africa blamed for nuclear detonation.
2/29/1980 South Pacific Ocean Researching vessel destroyed and all personnel killed. SCP-XXXX's nature becomes understood. Dense cloud cover and atmospheric interference prevent detection via Vela Hotel probes. The decision to notify world leaders of SCP-XXXX is made by Director Kushan.
7/11/1989 17 km northwest of Niʻihau, Hawaii Psi-19 are unable to prevent contact due to depth of interaction; detonation proceeds. Event is covered up and explained as a superbolide5 explosion. No amnestic distribution is needed due to small population.
12/25/1999 Gulf of Mexico, south of Louisiana Psi-19 is unable to intervene in time, detonation proceeds. Event coincides with the sunset, and most of the event is obscured due to positioning of the sun. Light amnestics distributed to coastal populations close to the point of detonation.
9/10/2004 Sea of Japan, 12 km east of North Hamgyong, North Korea Interference from North Korean military prevents Psi-19 from reaching SCP-XXXX in time, detonation proceeds. Event is detected by China, Japan, and South Korea. Political tensions in the region worsen severely and threats of military action are made. The appropriate leaders are contacted and made aware of the SCP-XXXX event, tensions calm slightly.
3/21/2007 57 km southwest of Amatignak Island, Alaska. SCP-XXXX triggers despite no other whale sharks being in the area. Due to deep water and distance of Psi-19 members, no damage is recorded. Whale shark physiology has been noted not to allow self-stimulation. The cause of SCP-XXXX's orgasm remains unknown.
3/11/2011 72 km east of Tōhoku, Japan SCP-XXXX contacted an unregistered female at an unusual depth, detonation proceeds. Resulting shockwave destabilizes local tectonic geology, creating a chain reaction that resulted in a massive earthquake. Earthquake registers as a 9.0M quake, and generates a massive tsunami that results in catastrophic damage to Japan and other Pacific areas, causing over 15,000 deaths and $360 billion USD in damages. SCP-XXXX's Object Class is updated to Keter, Psi-19 given increased training and new technology.

Addendum XXXX.2: Memo from Director Kushan, submitted 4/10/2011.

To you, my successor,

When I took on the mantle of Director, I swore an oath to Secure, Contain, and Protect. Following the events of this past March, it is clear that I failed, not only to Secure SCP-XXXX, and not only to Contain it, but to Protect the lives of all those people.

There is no one to blame for this but I. The blood of over 15,000 innocents now stains my hands, and it will a burden that I will have to bear for the rest of my life. I would ask forgiveness, but what I have done, how I have failed, is truly beyond remission.

Though this beast may be unorthodox, it is still a threat to that must be taken seriously. Do not repeat my mistake of not realizing this.

Secure, Contain, Protect,

—Dr. Kushan

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