Seismologists Question Second Round Of India's Nuclear Bomb Tests, As Reported In The 26 June 1998 Science

June 25, 1998

Washington, DC (25 June 1998)-In this week's issue of Science, a news story by Eliot Marshall reports that U.S. experts are questioning some of India's claims concerning last month's series of nuclear tests. The global web of sensors that monitor compliance with the Comprehensive Test Ban Treaty (CTBT) detected India's first round of tests on 11 May, but did not detect what India claimed was a second round of tests on 13 May. Now, according to Science, a strong consensus has emerged among U.S. seismologists that the system would have picked up a blast the size that India announced-equivalent to about 800 tons of TNT. This has led some experts to conclude that the 13 May tests may have been small blasts, fueled by chemical explosions, designed to test nuclear bomb components. Pakistan subsequently conducted two bomb tests of its own, both of which were observed by the seismic network.

The network's apparent failure to detect all of India's explosions has given strength to critics of the CTBT, who say that the network can't be trusted to detect small nuclear tests. President Clinton signed the CTBT in 1996, but the treaty's ratification is being stymied in the U.S. Senate. The monitoring system is also under threats of budget cuts.

For an embargoed copy of this news story, contact Heather Singmaster in the AAAS News & Information Office at 202-326-6414 or email at Please cite Science as the source of this item.

American Association for the Advancement of Science

Related Bomb Tests Articles from Brightsurf:

Researchers one step closer to bomb-sniffing cyborg locusts
Research from the McKelvey School of Engineering at Washington University in St.

Ticking time bomb: Malaria parasite has its own inherent clock
The activity of the parasite that causes malaria is driven by the parasite's own inherent clock, new research led by UT Southwestern scientists suggests.

Cold War nuclear bomb tests reveal true age of whale sharks
Atomic bomb tests conducted during the Cold War have helped scientists for the first time correctly determine the age of whale sharks.

How old are whale sharks? Nuclear bomb legacy reveals their age
Nuclear bomb tests during the Cold War in the 1950s and 1960s have helped scientists accurately estimate the age of whale sharks, the biggest fish in the seas, according to a Rutgers-led study.

Researchers: Synthetic chemicals in soils are 'ticking time bomb'
Synthetic chemicals that were released into the environment for the first time 80 years ago have been linked to harmful health effects, and more of them are migrating slowly from the soil, according to University of Arizona research.

Carbon bomb: Study says climate impact from loss of intact tropical forests grossly underreported
A new study in the journal Science Advances says that carbon impacts from the loss of intact tropical forests has been grossly underreported.

How to dismantle a nuclear bomb
MIT team successfully tests a new method for verification of weapons reduction.

Scientists find potential way to defuse 'time bomb' of cardiology
In a new study published in EBioMedicine, researchers at Western University and Lawson Health Research Institute use principles from cancer biology to demonstrate what might be causing aortic aneurysms and potentially how to treat them.

Intelligent testing could save lives by defusing ticking time bomb of liver disease
An innovation in liver function testing could detect liver disease decades before it becomes fatal.

Radioactive carbon from nuclear bomb tests found in deep ocean trenches
Radioactive carbon released into the atmosphere from 20th-century nuclear bomb tests has reached the deepest parts of the ocean, a new study in AGU's journal Geophysical Research Letters finds.

Read More: Bomb Tests News and Bomb Tests Current Events is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to