NZH

Huge "silent" slip quake is tearing parts of NZ apart

A slow-slip "silent" quake under the east coast regions of the North Island has been triggered by last Monday's massive Kaikoura Earthquake.

Monitoring equipment has detected a large on-going slow-slip event deep below the earth's surface under Hawke's Bay and Gisborne regions.

The silent quake has moved GPS stations 2-3cm.

NZH

GNS scientists believe the unfolding quake, which could last months, was triggered by passing seismic waves from the 7.8 earthquake.

In a blog on the GNS website scientist Laura Wallace said it was possible waves caused stress changes in the earth's plates sparking the latest large on-going silent quake.

The quakes, which are undetectable to humans and seismographs, can move faults the equivalent of magnitude 6 tremors over a period of weeks to months.

NZH

Wallace posted in the days following last week's Kaikoura earthquake a slip was triggered along the plate boundary where the Pacific meets the Australian Plate from Hawke's Bay up to East Cape at the same time.

She said while slow-slip events had previously happened in these regions they had been separated in time or happened one after the other.

GNS Science, GeoNet and scientists were keeping a close eye on the event as it unfolded.

NZH

- NZ Herald


Last chance to invest in lucrative property trust

Last chance to invest in lucrative property trust

Fund delivered 17.6 per cent to investors last year

Writers' bus taking the word to the people

Writers' bus taking the word to the people

NSW govenrment has delivered extra money for the project

Coastcare group say view will be protected

Coastcare group say view will be protected

An Iconic Ballina Shire view is set to be preserved for the future

Local Partners