Word: occurs
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Dates: during 1970-1979
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...soil that had been moistened with a nutrient broth showed a rapid release of carbon dioxide. The result might mean that some kind of microbe was metabolizing the food provided by Viking. But cautious scientists noted that certain peroxides in the soil might also have caused the reaction to occur...
...notice was posted on the wall outside offices of the U.S. Geological Survey on Dec. 30, 1976. Issued by six USGS scientists, it predicted that an earthquake measuring 3.5 on the Richter scale would occur within a 15 kilometer (9.3 mile) radius of a ranch near Hollister, Calif., during January 1977. On Jan. 6, a quake measuring 3.2 shook the ground about 10 kilometers (6.2 miles) from Hollister. This successful, unpublicized prediction shows that scientists are moving closer to their goal of reliable earthquake forecasts (TIME cover, Sept. 1, 1975). But predicting how people will react to public forecasts...
...Phase One. Experts announce in July 1977 that there is a 25% probability that a damaging quake will occur within three years in a specified urban area. About a fifth of the affected homeowners try to buy earthquake insurance for the first time...
...Phase Four. In July 1980 the quake is pinpointed to occur during the first week of September. By the end of August, some 60% of the area residents have left, 10% permanently. Of those remaining, many have begun eating and sleeping outdoors and avoiding older, taller buildings; school openings are postponed. A week before the quake is due, Government agencies move to trailers and other temporary facilities, well away from buildings and power lines...
...epidemic went from unlikely to nearly impossible. When no one south of the Equator succumbed during the summer--the Southern Hemisphere's flu season--and when after eight months the New Jersey recruit remained the only victim, government officials should have admitted that their epidemic was not likely to occur and should have revised their policy accordingly...