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Using a Simple High- to Low-Frequency Spectral Ratio to Distinguish Spatial Variations in Earthquake Source Properties
ADVANCES IN RELIABLE EARTHQUAKE SOURCE PARAMETER ESTIMATION IV POSTER
seismology | 12 december 2024
Ian Vandevert, Peter M. Shearer, Wenyuan Fan
Earthquakes radiate energy across a range of frequencies and the shape of the source spectrum can reveal details about earthquake mechanics. However, ...
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Investigating lateral variations in velocity structure near the 660-km discontinuity using subtle waveform details of S660S
SEISMOLOGY GENERAL CONTRIBUTION: STRUCTURE I ORAL
seismology | 12 december 2024
Shangqin Hao, Songqiao S. Wei, Peter M. Shearer
The 660-km discontinuity (d660) is a global seismic boundary separating Earth's upper and lower mantle that is usually attributed to the post-spinel t...
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Implications of a Reverse Polarity Earthquake Pair on Fault Friction and Stress Heterogeneity Near Ridgecrest, California
JOURNAL OF GEOPHYSICAL RESEARCH: SOLID EARTH
09 november 2024
Peter M. Shearer, Nader Shakibay Senobari, Yuri A....
We apply the Matrix Profile algorithm to 100 days of continuous data starting 10 days before the 2019 M 6.4 and M 7.1 Ridgecrest earthqua...
Substantial Global Radial Variations of Basalt Content Near the 660‐km Discontinuity
AGU ADVANCES
06 november 2024
Shangqin Hao, Songqiao S. Wei, Peter M. Shearer
Mid‐ocean ridges generate basalt and harzburgite, which are introduced into the mantle through subduction as a mechanical mixture, contributi...
The Matrix Profile in Seismology: Template Matching of Everything With Everything
JOURNAL OF GEOPHYSICAL RESEARCH: SOLID EARTH
20 february 2024
Nader Shakibay Senobari, Peter M. Shearer, Gareth ...
Template matching has proven to be an effective method for seismic event detection, but is biased toward identifying events similar to previously k...
SKHASH: A Python Package for Computing Earthquake Focal Mechanisms
SEISMOLOGY GENERAL CONTRIBUTION: EARTHQUAKES IV ORAL
seismology | 13 december 2023
Robert Skoumal, Jeanne Hardebeck, Peter M. Shearer...
We introduce a Python package for computing focal mechanism solutions. This algorithm, which we refer to as SKHASH, is largely based on the HASH algor...
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Ruptures Often Extend Beyond the Metastable Olivine Wedge for Large Deep Earthquakes
SLOW-TO-FAST EARTHQUAKES FROM SHALLOW TO DEEP: OBSERVATIONS, EXPERIMENTS, AND NUMERICAL MODELING IV POSTER
tectonophysics | 13 december 2023
Zhe Jia, Wenyuan Fan, Wei Mao, Peter M. Shearer
The long-standing mystery of deep earthquake occurrence results from the seemingly prohibitive high temperature and pressure at the 500-700 km depth. ...
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A unified view of the complex dynamics of the 2023 Kahramanmaraş, Turkey, Mw 7.8-7.7 earthquake doublet
TECTONIC SETTING, GEOPHYSICS, SURFACE RUPTURES, AND SIGNIFICANCE OF 6 FEBRUARY 2023 EARTHQUAKE SEQUENCE IN SOUTHERN TÜRKIYE AND NORTHWESTERN SYRIA II POSTER
tectonophysics | 13 december 2023
Zhe Jia, Zeyu Jin, Mathilde Marchandon, Thomas Ulr...
The recent moment magnitude (Mw) 7.8-7.7 earthquake doublet ruptured multiple segments of the East Anatolian Fault system in Turkey and caused heavy d...
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