uncertainty_class

name	classification _system	description	source	version	status
	classification _system .name		ref _source .name	ref _epicentre _version .name
high	POSC certainty levels	The information has the highest level of certainty.	POSC	2.2	provisional
medium high	POSC certainty levels	The information is not as certain as high, but is more certain than medium.	POSC	2.2	provisional
medium	POSC certainty levels	The information is not as certain as medium high, but is more certain than medium low.	POSC	2.2	provisional
medium low	POSC certainty levels	The information is not as certain as medium, but is more certain than low.	POSC	2.2	provisional
low	POSC certainty levels	The information has the lowest level of certainty.	POSC	2.2	provisional
certain	POSC certainty terms	The information is virtually certain to be true. There is a very high level of confidence in the information.	POSC	2.2	provisional
likely	POSC certainty terms	The information is probably true, but there is some small measure of doubt.	POSC	2.2	provisional
maybe	POSC certainty terms	The information is about as likely to be true as not to be true.	POSC	2.2	provisional
doubtful	POSC certainty terms	The information is less likely to be true than not to be true.	POSC	2.2	provisional
uncertain	POSC certainty terms	The information is little more than an informed guess. Very little reliability should be attached to the value other than to be used as a guide.	POSC	2.2	provisional
unknown	POSC certainty terms	The certainty of the information is unknown.	POSC	2.2	provisional