Before Ishiro Honda and Toho Studios released the greatest movie monster created on the Japanese and the world, the United States released their greatest nuclear monster on the Bikini Atoll, the Castle Bravo shot. Castle Bravo was the largest nuclear device tested by America, the first dry-cell thermonuclear device ever detonated, and cause of the largest radiological accident caused by the United States. [1, 2, 3] The history of the Bravo shot ties inextricably with the opening scene of Gojira. The boiling sea that swallows a fishing boat called the Eiko-Maru at the beginning of the scene is meant to parallel the fate of the Fukuryu Maru ( Lucky Dragon), which was covered by a plume of fallout, irradiating its entire crew and killing one of the crew members months later. In this section, I detail the history of Castle Bravo, and how its impact on Gojira.
The Castle Bravo shot was performed on March 1, 1954, off of an island in the Bikini Atoll:
The sublime and overwhelming power of the Bravo shot was made possible the Ulam-Teller device, and an unexpected nuclear reaction. The Ulam-Teller device was a configuration of nuclear fissile material that allowed for nuclear weapons to become more explosive and destructive than what had been tested before through the process of inducing hydrogen fusion within the device . Before Operation Castle, the Ulam-Teller configuration had been experimentally implemented during Operation Ivy with success [4]. During Operation Castle, the success of the Bravo shot was too successful because of the synthesis of the Ulam-Teller device with its prototypal dry-cell fuel. The lithium contained in the fuel had an unexpected reaction with the neutrons produced by hydrogen fusion, and the detonation of the Bravo shot was almost three times more powerful than expected (15 megatons [Mt] against the expected 5 Mt). [5]
The ensuing physical and radiological damage was expansive and drastic. The mushroom cloud from the detonation reached a peak elevation of almost 40 kilometers, with the cloud being 100 km across, and the stem 7 km. The Bravo crater was approximately 1.1 miles in diameter, and was 650 feet deep. [6] The radiological damage of Bravo shows the level of ignorance regarding the power of the newly-invented hydrogen bomb. The total area that was irradiated by the fallout was approximately 7,000 square miles. The cloud of fallout was carried by changing winds towards the islands of Rongelap, Utrik, and Ailinginae, and irradiated Americans, native Marshallese, and the Fukuryu Maru by covering the region with “ashes of death”, irradiated and vaporized coral. [7]
The Bravo shot and the irradiation of the Fukuryu Maru outraged the Japanese government, and was one of the polarizing events in creating the anti-nuclear movement in Japan. The Fukuryu Maru went undetected in the test zone, and was trolling for tuna approximately 190 km away from the Bravo shot, and was exposed to the rain of dust thick enough to leave footprints on the deck of the boat. The entire crew of 23 fishermen was afflicted with acute radiation sickness, and one died of disputed causes generally believed to have been secondary infection from radiation exposure. Bravo also caused significant damage to the tuna industry because of the widespread irradiation of the tuna around the epicenter. The response from the United States was to pay the Japanese government $2 million for the damages caused by Bravo on the crew of the Fukuryu Maru and the tuna industry. [8]
The connection between the Castle Bravo test and Gojira is significant because it created a direction for the creation of the film, and shows how nuclear testing is the origin of nuclear horror. The titular monster of the film was freed by the testing of nuclear weapons, as Dr. Yamane reveals to a council of politician and scientists after Gojira attacks Odo Island and starts its progress toward Tokyo. Originally, Godzilla was designed to be a prehistoric monster that awoke from its slumber in search of sustenance. But, producer Tomoyuki Tanaka proposed that, instead, the beast should be disturbed from its ocean habitat by American testing of thermonuclear weapons. [9] The recent anxiety caused by the Castle Bravo shot and the Fukuryu Maru incident created a logos for the film, such that Gojira became an allusion of nuclear horror derived from the relevant, Japanese anxieties and experiences of nuclear testing.
Footnotes:
[1] Richard Rhodes, Dark Sun: The Making of the Hydrogen Bomb (New York: Simon & Schuster, 1995), 541.
[2] Rhodes, Dark Sun, 541.
[3] Charles Zimmerman and Jack Dennis, “Nuclear Accidents,” in The Nuclear Almanac: Confronting the Atom in War and Peace, ed. Jack Dennis (Reading: Addison-Wesley Publishing Company, 1984), 286-287.
[4] Rhodes, Dark Sun, 501-512.
[5] Rhodes, Dark Sun, 541.
[6] Operation Castle, last modified May 17 2006,
http://www.nuclearweaponarchive.org/Usa/Tests/Castle.html
[7] Rhodes, Dark Sun, 542.
[8]American University Document Describing the Lucky Dragon Incident
[9] Steven Ryfle, “Godzilla’s Footprint” (essay appearing in Gojira: The Original Japanese Masterpiece DVD set, 2004).