Canterbury Mag. Five

A shallow magnitude five aftershock struck Canterbury this evening.

Monday 4th October 2010

A magnitide 5.0 aftershock struck Canterbury late this evening according to GeoNet. The quake, which struck at 10:22 p.m. New Zealand Daylight Time, was centred 10 km west of Christchurch (30 km east of Darfield) at a depth of 12 km.

The aftershock struck just over a month after the magnitude 7.1 Darfield earthquake that caused heavy damage in the Canterbury region early on the morning of September 4th.

The U.S. Geological Survey reports the quake as magnitude 5.2 at a depth of 10 km, centred 20 km west of Christchurch. Geoscience Australia also reports the quake as magnitude 5.2 but has supplied a depth of 0 km at this early stage. Putting the epicentre at the southern extremity of Banks Peninsula, Geoscience Australia estimates that the quake would have been felt up to 200 km away.

A magnitude 4.0 aftershock at 10:29 p.m. was reported by GeoNet. This was centred 20 km west of Christchurch at a depth of 5 km.

This evening’s earthquakes follow two magnitude five events in the Southern Kermadec Islands today. Geoscience Australia reports a magnitude 5.0 quake at 1:06 this afternoon and a magnitude 5.3 quake at 5:43 this morning. Position information for each event is not given, but the U.S. Geological Survey, which reported the 5:43 a.m. quake, notes that it was centred 130 km south-south-west of L’Esperance Rock (715 km north-east of Auckland) at a depth of 105 km.

[Compiled from data supplied by the U.S. Geological Survey, Geoscience Australia and the GeoNet project and its sponsors EQC, GNS Science and FRST.]

One Response to “Canterbury Mag. Five”

  1. Lizzie from Gizzie says:

    the place sure is rocking still!

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