The results on the North Korean nuclear test are starting to come in.
According to NHK the Japanese have found:
Japan’s 47 prefectures say no radioactive substances have been detected at any measuring points in a survey conducted one day after North Korea’s claimed nuclear test.
The prefectures took samples of dust and rain from the air on Tuesday as part of an emergency government monitoring program.
They say the survey shows no trace of radioactive substances peculiar to a nuclear explosion, and that air radiation levels are normal.
Other government checks, including an air survey of radioactive substances from a Self-Defense Forces’ training plane, have also shown no unusual data.
Yonhap reports the South Koreans’ results:
SEOUL, Oct. 12 (Yonhap) — No signs of unusual radiation levels have been detected in South Korea after North Korea said it successfully detonated a nuclear device, the government said Thursday.
The Ministry of Science and Technology said none of the government’s 38 manned and unmanned monitoring centers had picked up any spikes in natural radiation from Monday noon to Thursday morning. The usual levels of radiation in South Korea are 10-20 Micro-Roentgen (mR).
WASHINGTON – Results from an initial air sampling after North Korea’s announced nuclear test showed no evidence of radioactive particles that would be expected from a successful nuclear detonation, a U.S. government intelligence official said Friday.
The test results do not necessarily mean the North Korean blast was not a nuclear explosion, the official said, speaking on condition of anonymity because he was not authorized to disclose the sampling results.
Nonetheless, the readings reinforce uncertainty about the size and success of Monday’s underground explosion, which North Korea has trumpeted as a nuclear test. It also keeps alive lingering questions about whether it was in fact a nuclear blast. Data from seismic sensors have already indicated the explosion was smaller than expected.
Given the North Koreans’ announcement and the reported pre-test discussions with the Russians the evidence would appear to suggest that either the test was a dud or a deliberate fraud.
I’m not certain it makes a great deal of difference whether the North Koreans successfully detonated a nuclear device, their nuclear device was unsuccessful, or they’re trying to convince us that they’re farther along than they really are. The situation should be taken seriously.