Earthquakes struck the central Hawke's Bay District and Bay of Plenty region this morning.
A 4.7 magnitude quake struck 40 kilometres north-east of Opotiki, near Whakatane, at 7.30am.
The quake was at a depth of 40 kilometres and the jolt was felt across the Bay of Plenty region. There have been no reports of damage.
And a 3.7 magnitude quake hit 30 kilometres north-west of Waipukurau at 10.57am at a depth of 40 kilometres. It was felt in Hawke's Bay.
The earthquakes come as ash continues to spew from White Island.
The volcanic Island, which lies 48km off the Bay of Plenty coast, was raised to a Volcanic Alert Level 2 after a surveillance camera captured a small eruption from its crater on Sunday.
Another earthquake was reported near Invercargill last night.
It struck 160km west of Tuatapere, north west of Invercargill, at 7.40pm. It was at a depth of 33km.
The quake was followed by a 3.7 magnitude earthquake that struck within 5km of Lyttelton at a depth of eight kilometres.
This was felt as far north as Wellington, and was described in Lyttelton as a strong quake.