Free surface reflection and fault geometric asperities can excite backward propagation in the form of an interface wave or high-order re-rupture.
seismology
Posted inEditors' Highlights
Diverse Seismic Response in Hectometer-Scale Fracture System
An underground experiment with multi-stage stimulations reveals diverse seismic responses within a complex hectometer-scale fracture network, shedding light on induced seismicity behaviors at field scale.
Posted inNews
Seismometers Track Atmospheric Shock Waves from Incoming Space Debris
A Chinese spacecraft that burned up high over Los Angeles created a sonic trail detected by ground-based sensors.
Posted inEditors' Highlights
120 Years of Geodetic Data on Kīlauea’s Décollement
A new study explores the deformation and stress changes of Kīlauea’s décollement from 1898 to 2018 by collating an unprecedented 120 years of geodetic data.
Posted inResearch Spotlights
Three Ways to Track Venusquakes, from Balloons to Satellites
The planet’s harsh conditions make studying seismicity challenging, but it is likely possible.
Posted inEditors' Highlights
Compositional Anomalies Complicate Our Model of Mantle Convection
A new study expands on recent research which suggests that oceanic crust accumulates in the mid-mantle. The new seismological constraints advance our understanding of thermo-chemical planetary evolution.
Posted inNews
Creeping Faults May Have Simpler Geometries
A recent study offers an alternative perspective on why some fault segments slide smoothly, whereas others get stuck and produce earthquakes.
Posted inNews
Finding the Frequency of a Fjord
A massive tsunami churned up a mysterious 9-day noise in East Greenland. As the climate warms, more fjords may start singing.
Posted inScience Updates
Volcanic Anatomy, Mapped as It Erupts
Testing during the 2021 Tajogaite eruption on La Palma demonstrated the value of near-real-time petrological analyses as a supplement to seismic and geochemical data for eruption monitoring.
Posted inEditors' Highlights
Counting from One to Nine to Detect Debris Flows
A groundbreaking method using Benford’s law allows the detection of debris flows from seismic signals.