Search Results for author: Gregory C. Beroza

Found 6 papers, 3 papers with code

Earthquake Phase Association with Graph Neural Networks

no code implementations15 Sep 2022 Ian W. McBrearty, Gregory C. Beroza

The advent of deep learning pickers, which provide high rates of picks from closely overlapping small magnitude earthquakes, motivates revisiting the phase association problem and approaching it using the methods of deep learning.

Bayesian-Deep-Learning Estimation of Earthquake Location from Single-Station Observations

no code implementations3 Dec 2019 S. Mostafa Mousavi, Gregory C. Beroza

The network estimates epicentral distance and P travel time with absolute mean errors of 0. 23 km and 0. 03 s respectively, along with their epistemic and aleatory uncertainties.

A Machine-Learning Approach for Earthquake Magnitude Estimation

no code implementations14 Nov 2019 S. Mostafa Mousavi, Gregory C. Beroza

In this study we develop a single-station deep-learning approach for fast and reliable estimation of earthquake magnitude directly from raw waveforms.

BIG-bench Machine Learning

Seismic Signal Denoising and Decomposition Using Deep Neural Networks

2 code implementations6 Nov 2018 Weiqiang Zhu, S. Mostafa Mousavi, Gregory C. Beroza

We demonstrate the effect of our method on improving earthquake detection.

Geophysics Signal Processing

CRED: A Deep Residual Network of Convolutional and Recurrent Units for Earthquake Signal Detection

1 code implementation3 Oct 2018 S. Mostafa Mousavi, Weiqiang Zhu, Yixiao Sheng, Gregory C. Beroza

It learns the time-frequency characteristics of the dominant phases in an earthquake signal from three component data recorded on a single station.

Template Matching

PhaseNet: A Deep-Neural-Network-Based Seismic Arrival Time Picking Method

4 code implementations8 Mar 2018 Weiqiang Zhu, Gregory C. Beroza

As the number of seismic sensors grows, it is becoming increasingly difficult for analysts to pick seismic phases manually and comprehensively, yet such efforts are fundamental to earthquake monitoring.

Geophysics Applications

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