Overview

The Center for Engineering Strong Motion Data (CESMD) is a cooperative center established by the US Geological Survey (USGS) and the California Geological Survey (CGS) to integrate earthquake strong-motion data from the CGS California Strong Motion Instrumentation Program, the USGS National Strong Motion Project, and the Advanced National Seismic System (ANSS). Also, international agencies are contributing strong-motion records from significant earthquakes that occur globally. The CESMD provides raw and processed strong-motion data for earthquake engineering applications.

Special Studies

Database of ground motions from in-slab earthquakes near Anchorage, Alaska, 2008-2019

This study involves a collection of peak ground motions from the 2018 Mw earthquake near Anchorage, as well as 44 intermediate-depth earthquakes with magnitudes greater than or equal to 4.9 earthquakes in the Cook Inlet region of southern Alaska. This study was intended to better understand the spatial patterns in amplifications related to site and basin effects. Further details can be found in the citation given below.

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Database of ground motions from tectonic and volcanic events, Hawaii, 2018

This study involves a collection of peak ground motions from the 2018 M6.9 earthquake near Leilani Estates, Hawaii and the seismicity associated with the Kilauea Volcano eruption and summit collapse events. This study was intended to better understand ground motions from shallow tectonic earthquakes in Hawaii, and to investigate the differences in the ground motions from summit collapse events and tectonic earthquakes.

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Ground motions from the 2019 Ridgecrest, California, Earthquake Sequence

This project involves the compilation of ground motions, their derived parameters, and metadata for 131 earthquakes in the 2019 Ridgecrest, California, earthquake sequence. This dataset includes 22,375 records from 131 events from 4 July 2019 to 18 October 2019 with a magnitude range from 3.6 to 7.1.

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Ground motion Fourier and response spectra from Utah earthquakes, 2010-2020

This dataset includes Fourier amplitude spectral (FAS) of acceleration ground motions and pseudospectral accelerations (5-percent-damped) from magnitude 3.5-5.7 earthquakes occurring in the Wasatch Front, Utah between 2010 and 2020. The dataset includes records from 59 earthquakes.

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Database of horizontal-component Fourier amplitude spectra of acceleration ground motions from Pacific Northwest earthquakes, 1999-2020

This dataset includes quadratic mean Fourier amplitude spectra (FAS) of acceleration ground motions from crustal and intraslab earthquakes in the US Pacific Northwest with magnitudes 3.5-6.8 and hypocentral depths 0-62 km. The dataset consists of 8,028 records from 96 different earthquakes between 1999 and 2020.

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Ground-motion records and basin depth models for Reno, Nevada, 2008-2022

This dataset includes processed ground-motion records and horizontal pseudospectral accelerations (5-percent-damped) from magnitude 3.0-6.0 earthquakes occurring in the vicinity of Reno, Nevada, between 2008 and 2022. The dataset includes 592 records from 104 earthquakes and 42 stations. Spectral values are provided at 21 periods (0.01-10 s).

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Ground-motion records and basin depth models for Portland, Oregon, 2005-2022

This dataset includes processed ground-motion records and horizontal pseudospectral accelerations (5-percent-damped) from magnitude 3.0-6.8 earthquakes occurring in the vicinity of Portland, Oregon, between 2005 and 2022. The dataset includes 347 records from 134 earthquakes and 69 stations. Spectral values are provided at 21 periods (0.01-10 s).

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Ground-motion records and basin depth models for the Great Valley, California, 2000-2022

This dataset includes processed ground-motion records and horizontal pseudospectral accelerations (5-percent-damped) from magnitude 3.5-7.1 earthquakes occurring in the vicinity of the Great Valley, California, between 2000 and 2022. The dataset includes 12,044 records from 564 earthquakes and 254 stations. Spectral values are provided at 21 periods (0.01-10 s).

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Central and Eastern U.S. Earthquake Ground Motion Database: 2010 to 2020

This is a compilation of ground motion intensity metrics and associated metadata for earthquakes from 2010 to 2020 in the central and eastern U.S. The dataset includes 38,400 records from 269 events with magnitudes ranging from M3.0 to M5.8. The ground motion metrics include peak ground acceleration, peak ground velocity, and 5% damped spectral acceleration at 21 periods from 0.01 sec to 10 sec.

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