Ninety people have reported feeling the first earthquake on GeoNet while 40 people have reported feeling the second.
The majority have described it as a weak-light shake.
It follows two other earthquakes in the South Island today.
A 3.7 quake registered at a depth of 11km and had its epicentre 5km east of the Christchurch city centre, struck near Linwood Ave at 12.36am.
A magnitude 4.2 earthquake was felt by a number of people across the West Coast.
According to GeoNet, the quake struck at 6.32am on Wednesday centred near Reefton at a depth of 5km.