Coastal Earthquakes

Two moderately strong earthquakes struck off New Zealand coasts overnight. The quakes are the latest events in on-going earthquake activity in the islands of the south-west Pacific.

A magnitude 5.2 earthquake struck 110 km north of White Island at 11:19 last night, Thursday 11th October 2007. The 12 km deep quake has attracted 10 reports from the public in Tauranga, Coromandel and Auckland.

A magnitude 5.4 quake struck 445 km south-west of Invercargill (210 km north-west of Auckland Island) at 5:25 this morning. The quake was estimated to be 8 km deep.

Earlier yesterday, a magnitude 5.1 quake struck 20 km south-east of Rotorua at 4:51 a.m. The earthquake, which was 160 km deep, was felt from Hamilton to Torere (east of Opotiki), attracting 5 reports from the public.

During the past week, ten earthquakes with magnitudes between 4.8 and 6.5 have been reported at various Pacific Islands. A magnitude 6.5 quake struck half-way between Raoul Island and Fiji on October 5th. A magnitude 5.2 quake was reported nearer Fiji the following day, and a magnitude 5.1 quake was reported near the Santa Cruz Islands.

On October 9th, a magnitude 5.9 quake struck near Fiji and a magnitude 5.2 quake near the Solomon Islands. A magnitude 5.2 event was reported near Tonga on the 10th. Later that day a magnitude 4.8 quake was reported half-way between Raoul Island and Fiji, and a magnitude 5.0 quake nearby just after midnight.

On Thursday 11th, a pair of magnitude 5.3 quakes were reported, one located southeast of the Loyalty Islands, the other near Vanuatu.

[Compiled from data provided by the US Geological Survey and its contributing agencies; and the Geonet project and its sponsors EQC, GNS Science and FRST.]

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