Passive seismic (HVSR) data from Fountain Creek, CO
A total of 119 passive seismic soundings were collected with Tromino (MoHo s.r.l.) 3-axis seismometers in the Fountain Creek area to partially refine alluvial aquifer thickness (depth to bedrock) estimates, particularly over known or suspected paleochannels. Data were collected during June 21-24, 2021 with a team of 4-5 people, each equipped with a Tromino Blu or Tromino 3G passive seismometer. A subset of the data included measurements made for shear velocity calibration; this included data collected at 10 well sites where depth to bedrock was available from driller's logs, and 3 sites above cutbanks where bedrock outcropped and the thickness of alluvial sediments could be directly measured. Data were processed using a publicly available batch R processing script (Terry, 2022).
In picking depths from the 119 measurements for alluvial aquifer thickness, roughly 30% were deemed unusable, 14% were picked with low confidence, 38% were picked with medium confidence, and 18% were picked with high confidence. Calibration data suggested a shear wave velocity of 195 meters per second. Using this value, estimated alluvial aquifer thicknesses ranged from 1.7 to 26.8 meters.
Citation Information
| Publication Year | 2022 |
|---|---|
| Title | Passive seismic (HVSR) data from Fountain Creek, CO |
| DOI | 10.5066/P9H3D9JG |
| Authors | Neil C Terry, Cory A Russell, Micah Morris, Connor P Newman, M. Alisa Mast, Suzanne Paschke |
| Product Type | Data Release |
| Record Source | USGS Digital Object Identifier Catalog |
| USGS Organization | New York Water Science Center |
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Connor Patrick Newman
Hydrologist - Groundwater Specialist
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Connor Patrick Newman
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