Earthquake Hazards Program

Data and Tools

Realtime monitoring, station, and other various seismic data available for download. Data products to view and download.

Earthquake and Monitoring Data

Earthquake and Monitoring Data

Ongoing data collections and popular collections. Add datasets, including those associated with publications, are listed below.

Links to Data
Filter Total Items: 294
Date published: October 13, 2020

Seismic reflection imaging of the low-angle Panamint normal fault system, eastern California, 2018

A fundamental question in seismic hazard analysis is whether <30º-dipping low-angle normal faults (LANFs) slip seismogenically. In comparison to more steeply dipping (45-60º) normal faults, LANFs have the potential to produce stronger shaking because of their increased possible rupture area in the seismogenic crust. While LANFs have been documented globally, examples o

Date published: October 1, 2020

Data supporting an analysis of the recurrence interval of post-fire debris-flow generating rainfall in the southwestern United States

This data release supports the analysis of the recurrence interval of post-fire debris-flow generating rainfall in the southwestern United States. We define the recurrence interval of the peak 15-, 30-, and 60-minute rainfall intensities for 316 observations of post-fire debris-flow occurrence in 18 burn areas, 5 U.S. states, and 7 climate types (as defined by Beck, H. E., Zimmerma

Date published: September 14, 2020

Maximum Considered Earthquake Geometric Mean Peak Ground Accelerations for the 2015 NEHRP Recommended Seismic Provisions, 2016 ASCE/SEI 7 Standard, and 2018 International Building Code

The Maximum Considered Earthquake Geometric Mean (MCEG) peak ground acceleration (PGA) values of the 2015 NEHRP Recommended Seismic Provisions, the 2016 ASCE/SEI 7 Standard, and the 2018 International Building Code can be calculated from the downloadable data via the following equations: PGA = min[ PGA_UH, max( PGA_D84th , 0.5 ) ] where PGA_UH = uniform-hazard peak

Date published: September 14, 2020

Risk-Targeted Maximum Considered Earthquake Spectral Response Accelerations for the 2015 NEHRP Recommended Seismic Provisions, 2016 ASCE/SEI 7 Standard, and 2018 International Building Code

The Risk-Targeted Maximum Considered Earthquake (MCER) spectral response acceleration (S_S and S_1) values of the 2015 NEHRP Recommended Seismic Provisions, the 2016 ASCE/SEI 7 Standard, and the 2018 International Building Code are calculated from the downloadable data via the following equations: S_S = min[ S_SUH * C_RS , max( S_SD84th , 1.5 ) ] S_1 = min[ S_1

Date published: September 8, 2020

Updated Compilation of VS30 Data for the United States

VS30, the time-averaged shear-wave velocity (VS) to a depth of 30 meters, is a key index adopted by the earthquake engineering community to account for seismic site conditions. VS30 is typically based on geophysical measurements of VS derived from invasive and noninvasive techniques at sites of interest. Owing to cost considerations, as well as logistical and environmental concerns, V

Date published: August 18, 2020

Compilation of geologic slip rate constraints used in 1996—2014 U.S. National Seismic Hazard Maps

A key input for probabilistic seismic hazard analysis (PSHA) is geologic slip rate data. Yet, no single database exists to house all geologic slip rate data used in these calculations. Here, we compile all geologic slip rates that are reportedly used in U.S. National Seismic Hazard Map (NSHM) releases from 1996, 2002, 2007, 2008, and 2014. Although a new NSHM was released in 2

Date published: August 17, 2020

Displacement and strain field from the 2019 Ridgecrest earthquakes derived from analysis of WorldView optical satellite imagery

This Data Release contains co-seismic horizontal and vertical displacements of the 2019 Ridgecrest earthquakes derived from sub-pixel cross correlation of WorldView satellite optical imagery. Additionally, the dataset contains the 2-dimensionsal (2D) and 3-dimensional (3D) surface strain fields, inverted from the surface displacements.

Date published: July 14, 2020

Field Observations With Quantitative Displacement Measurements Obtained From Surface Faulting and Ground Deformation Features Produced by the Ridgecrest M6.4 and M7.1 Earthquake Sequence of July 4 and 5, 2019: Provisional Release 1

This dataset contains a provisional release of field observations at sites of fault rupture and ground deformation features where quantitative displacement measurements were obtained. This release does not include associated photographs and some observations where there are outstanding questions about the measurements received; some duplicate observations may exist in this dataset. Photos and...

Date published: July 14, 2020

Shapefile of Fault Rupture and Ground Deformation Features Produced by the Ridgecrest M6.4 and M7.1 Earthquake Sequence of July 4 and 5, 2019: Provisional Release 1

This item contains linework that represents fault rupture and ground deformation features interpreted from field-based maps and observations, as well as airborne imagery, lidar, and geodetic imagery products. Provisional maps of fault rupture and ground deformation are composed of a “mashup” of linework from these various sources, obtained and compiled as of December,

Date published: June 19, 2020

Inventory of landslides triggered by the 2020 Puerto Rico earthquake sequence

Here we present an inventory of remotely and field-observed landslides triggered by 2019-2020 Puerto Rico earthquake sequence. The inventory was mapped using pre- and post-event satellite imagery (PR_landslide_inventory_imagery.csv), an extensive collection of field observations (https://doi.org/10.5066/P96QNFMB) and using pre-earthquake lidar as...

Date published: June 16, 2020

Economic subareas of interest data for areas containing concentrated damage resulting from the April 18, 2018, HayWired earthquake scenario in the San Francisco Bay region, California

The data in this data release are comprised of one geospatial vector dataset and three tabular datasets related to the HayWired earthquake scenario, a magnitude 7.0 earthquake hypothesized to occur on April 18, 2018, with an epicenter in the city of Oakland, CA. The geospatial vector data are a representation of identified economic subareas for use in selected analyses related to selecte

Date published: June 16, 2020

Estimated geospatial and tabular damages and vulnerable population distributions resulting from exposure to multiple hazards by the M7.0 HayWired scenario on April 18, 2018, for 17 counties in the San Francisco Bay region, California

This data release is comprised of geospatial and tabular data developed for the HayWired communities at risk analysis. The HayWired earthquake scenario is a magnitude 7.0 earthquake hypothesized to occur on the Hayward Fault on April 18, 2018, with an epicenter in the city of Oakland, CA. The following 17 counties are included in this analysis unless otherwise specified: Alameda, Contr