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Room: Key Ballroom 10

Date: 4/16/2025

Session Time: 2:00 PM to 3:15 PM (local time)

Unusual Earthquakes and Their Implications

Many earthquakes challenge paradigms about earth mechanics and pose troubling implications for hazard and risk. Earthquakes can occur in unexpected regions: low shear-stress stable continental interiors; deep in subduction zones where high pressures and temperatures should inhibit brittle failure; and even on the Moon, Mars and other planets. Earthquakes can behave in unusual ways: ruptures can slip "backwards" or propagate in unexpected directions; large earthquakes can happen in rapid succession; or they can happen with multiple slip episodes with rupture speeds faster or slower than expected. Such events often require new physical explanations that push the boundaries of our understanding of seismogenesis and rupture propagation. They also complicate hazard and risk analyses, requiring those models to go beyond standard statistical and physical approaches. We welcome contributions on any unusual or thought-provoking earthquakes.

Conveners 

Zhe Jia, University of Texas at Austin (zjia@ig.utexas.edu)
Chris Rollins, GNS Science | Te Pū Ao (c.rollins@gns.cri.nz)
Alice R. Turner, University of Texas at Austin (alice.turner@jsg.utexas.edu)​​​​​​

Oral Presentations