Manawahe Fault

Manawahe Fault
Approximate surface traces of the active Manawahe Fault in red in the Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Volcanic arc/belt	Taupō Volcanic Zone
New Zealand geology database (includes faults)

The Manawahe Fault line is a seismically active area in the Bay of Plenty Region of the central North Island of New Zealand with the potential to be involved with other faults in an M_w7.0 event.^[2]

Geology

North of

This intra-rift fault has certainly ruptured several times in the last 10,000 years.[3] The last rupture identified was 636 years ago, with recurrence intervals between 1580–2000 years of a fault with one of the highest slip rates so far defined in the Taupō Volcanic Zone.^[2] Although potentially ruptures could be up to M_w 7 if the fault ruptured at the same time as the longer Matata fault, only > M_w 5.5 can be definitely assigned on displacements characterised to date as there appears to have never been a single full length fault rupture which would result in a M_w 6.3event.^[2]

References