Post by Brent George on Dec 12, 2021 3:56:10 GMT
Slow-slip earthquake taking place beneath Kāpiti
Stuff - National:12-Dec-2021
After five years of being stuck to the overlying Australian plate, GNS Science said the subducting Pacific Plate has started moving again.
Since the slow-slip event began in mid-September, experts have recorded six centimetres of movement at the plate boundary so far.
But this is nothing new:
NZ Herald - 24-June-2021
The second "slow-motion" earthquake to unfold beneath New Zealand within weeks appears to have driven a cluster of tremors north of Gisborne – including a 4.2 shake.
What are called slow-slip earthquakes – a phenomenon observed only in the last two decades - can last from days to years and produce up to tens of centimetres of displacements along faults.
And a more technical description can be found here:
www.geonet.org.nz/about/earthquake/sse
Stuff - National:12-Dec-2021
After five years of being stuck to the overlying Australian plate, GNS Science said the subducting Pacific Plate has started moving again.
Since the slow-slip event began in mid-September, experts have recorded six centimetres of movement at the plate boundary so far.
But this is nothing new:
NZ Herald - 24-June-2021
The second "slow-motion" earthquake to unfold beneath New Zealand within weeks appears to have driven a cluster of tremors north of Gisborne – including a 4.2 shake.
What are called slow-slip earthquakes – a phenomenon observed only in the last two decades - can last from days to years and produce up to tens of centimetres of displacements along faults.
And a more technical description can be found here:
www.geonet.org.nz/about/earthquake/sse