GNS Science duty volcanologist Ery Hughes says the earthquakes weren't continuous, most occurring before 11pm and another burst about 3am.

She says such swarms are common in geothermal areas.

GeoNet's website, specifies the earthquakes peaked at 3.4 in magnitude.

>> More Upper North Island News

Other Upper North Island News

01 Feb: Police have confirmed a motorcyclist found dead in a Northland creek, was shot

30 Jan: A homicide investigation's begun into the death of a motorcyclist found in a Northland creek, yesterday morning

30 Jan: A man has been charged over a hit-and-run that left a teen cyclist dead in Northland's Okaihau, on Tuesday night

29 Jan: Rotorua's Mayor says cracking down on illegal trolley use - is not an attack on homeless people

29 Jan: Closures will continue overnight on State Highway 15, near Whangarei, as Police investigate the unexplained death of a motorcyclist

29 Jan: A 31-year-old Northland man's due in court today, in relation to a police pursuit across Auckland yesterday

29 Jan: Northland's State Highway 15 has been closed between Maungatapere and Otaika due to a serious incident, and is expected to remain closed for most of the day

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BUSINESS
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Today's News

Law and Order:
A person has moderate injuries after an assault at a retail premises in South Auckland 21:56

Environment:
A deadly flood in Australia could be the worst on record in a century as heavy rainfall continues to hammer the north, prompting widespread evacuations 21:26

Cricket:
Wellington have successfully defended a meagre total of 104 for eight to win the women's T20 Super Smash final over Otago in the capital 21:16

Living & Travel:
Australian couple 'shipwrecked' on Gili Iyang in Indonesia 21:06

International:
Donald Trump signs executive order to impose tariffs on Canada, Mexico and China 19:26

Soccer:
The Wellington Phoenix women are intent on keeping a clean sheet against the fiery attack of the Brisbane Roar in tonight's A-League clash across the Tasman 18:36

Living & Travel:
Washington DC crash preliminary data raises questions about aircrafts' altitude 18:16

Soccer:
Calls from Wellington Phoenix women's coach Paul Temple for his side to establish an identity for themselves in tonight's A-League game against the Brisbane Roar at Perry Park 18:06

Cricket:
Wellington are toasting a ninth women's Super Smash T20 title, after beating Otago by eight runs in the decider in the capital 16:56

Athletics:
Teenage middle distance runner Samuel Ruthe's become the youngest man to win a national senior track and field title 16:16

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