New calculations by GNS Science yesterday show that from today until June 15 next year there is now a 30 per cent chance of a quake of between magnitude 6.0 and 6.9 striking the Canterbury aftershock zone.
That compares with a nearly one-in-four, or 23 per cent, probability expressed last month.
The calculations show if that quake does not occur in the next month, the chance of it happening will drop back to about the 23 per cent level.
GNS Science hazards modeller Matt Gerstenberger called it a "slightly increased" risk.
"Before, we were talking about a one-in-four chance. It's now three in 10. It's an increase but it isn't a large increase," he said.作者: 狂野的水墨 时间: 2011-6-15 08:22:38