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Using a method to better locate the source of weak tremors from regions with complex geological features, researchers found that many tremors originate from the shear zone, an area of high fluid pressure, in the Nankai Trough, which is schematically shown here with structures of tectonic plates and fault lines.

Making sense of commotion under the ocean to locate tremors near...

Looking at the Toaroha River, near New Zealand’s Alpine Fault. | GNS Science

Seismic activity of New Zealand’s alpine fault more complex than suspected

San Andreas Fault

Deep underground forces explain quakes on San Andreas Fault

Graduate student Mike Duvall is pictured here in southeastern Nepal during fieldwork in 2017. Image credit: John Waldron

Scientists discover fault system in southeastern Nepal

San Andreas Fault Zone

Chance of big San Andreas earthquake increased by Ridgecrest temblors, study...

Fig. 1 Map of the 2016 Kaikōura earthquake and surrounding area. (A) Transpressional tectonic setting of the northeastern South Island of New Zealand. (B) Map of surface ruptures from the 2016 Mw 7.8 Kaikōura earthquake, shown in bold black lines with the Papatea fault in red (8, 28). Dots represent scaled relative energy release from back-projection results (15) and are colored by time since rupture onset. Mapped active faults that did not rupture during the Kaikōura event are indicated by thin black lines (28). Credit: Science Advances 02 Oct 2019: Vol. 5, no. 10, eaax5703, DOI: 10.1126/sciadv.aax5703

Unusual fault rupture during Kaikōura quake

Machu Pichu. Detailed mapping indicates the World Heritage Site’s location and layout were dictated by the underlying geological faults. Photo taken 5 Nov. 2010; credit: Rualdo Menegat.

Machu Picchu: Ancient Incan sanctuary intentionally built on faults

A fresh surface rupture of the Kekerengu fault, taken 4 days after the Kaikoura earthquake, with lead author Jesse Kearse leaning next to a curved slickenline (the subject of this article). Photo credit - Professor Tim Little (Victoria University of Wellington).

Curved slickenlines preserve the direction of rupture propagation

Tibetan Plateau

Folding faults and seismic risk in the Kunlun range, Northwest Tibet

San Andreas Fault

California’s current earthquake hiatus is an unlikely pause

San Andreas Fault

Signs of 1906 earthquake revealed in mapping of offshore northern San...

Roman monuments, including the Colosseum

Seemingly dormant geologic fault damaged famous Roman buildings 1,500 years ago

Carbon dioxide emissions can be securely stored in underground rocks, with minimal possibility of the gas escaping from fault lines back into the atmosphere, research by the University of Edinburgh has shown. Credit: Johannes Miocic

Fault lines are no barrier to safe storage of CO2 below...

A cartoon showing how anomalous earthquakes near the San Andreas and San Jacinto faults in southern California work in regions deep below the Earth's surface.

Geoscientists find unexpected ‘deep creep’ near San Andreas, San Jacinto faults

San Andreas Fault

‘Slow earthquakes’ on San Andreas Fault increase risk of large quakes

San Andreas Fault

Site of the next major earthquake on the San Andreas Fault?

Parkfield Segment, San Andreas fault

Parkfield segment of San Andreas fault may host occasional large earthquakes

The post-2008 seismicity has occurred both in areas that were seismically active before 2008 (for example, the Mississippi embayment) and in regions with no pre-2008 historical or instrumental seismicity (for example, FWB).

Research shows North Texas earthquakes occurring on ‘dead’ faults

Three main types of faults

Fault Types : What are the three main types of faults?

What Is a Geologic Fault?

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