| Acronym | Definition |
| AEDS | Atomic Energy Detection System |
| AFRL | Air Force Research Laboratory |
| AFTAC | Air Force Technical Applications Center |
| AIC | Akaike Information Criterion |
| AK135 | seismic travel time model |
| ANFO | ammonium nitrate fuel oil |
| ANOVA | analysis of variance code |
| ArcView | commercial GIS software |
| ARSA | Automated Radioxenon Sampler/Analyzer |
| BDSN | Berkeley Digital Seismic Network |
| BEM | boundary element method |
| Be-7 | beryllium-7 |
| CDSN | Chinese Digital Seismic Network |
| CEA | Commissariat l'Energie Atomique (French bulletin) |
| ChISS | Russian abbreviation for multichannel spectral seismometer |
| CLVD | compensated linear vector dipole |
| CMT | Harvard centroid moment tensor |
| CodaMag | tool to implement magnitude calculations (Mayeda, 1993; Mayeda and Walter, 1996) |
| CRUST2.0 | crustal model (Bassin et al., 2000) |
| CTBT | Comprehensive Nuclear-Test-Ban Treaty |
| CTBTO | Comprehensive Nuclear-Test-Ban Treaty Organization |
| CU | University of Colorado |
| CUB2.0 | 3D global models (Shapiro et al., 2002) |
| CU-Boulder | University of Colorado, Boulder |
| DEM | digital elevation model |
| DMC | Data Management Center (IRIS) |
| DOB | depth of burial |
| DoD | Department of Defense |
| DOE | Department of Energy |
| DOS | Department of State |
| DSS | deep seismic sounding |
| EDR | Earthquake Data Reports - a USGS publication |
| EHB | Engdahl, E.R., van der Hilst, R. & Buland, R., 1998. Global teleseismic earthquake relocation with improved travel times and procedures for depth determination, Bull. Seismol. Soc. Amer., 88, 722-743 |
| ERL | Earth Resources Laboratory (MIT) |
| ERS | European Remote Sensing (satellites) |
| ETOPO | earth topographic (database) |
| ETOPO5 | terrain model |
| EventID | tool to implement event discrimination (Hartse et al., 1997; Walter et al., 1999) |
| EvLoc | location software |
| FDSN | Federation of Digital Seismic Networks |
| FD | finite difference |
| FE | finite element |
| F-K | frequency wavenumber |
| Fstat, F-stat | F-statistic |
| FSU | Former Soviet Union |
| GBF | generalized beamforming |
| GEON | Geosciences Network |
| GII | Geophysical Institute of Israel |
| GIS | geographical information system |
| GMT | generic mapping tool |
| GNEMRE | Ground-Based Nuclear Explosion Monitoring Research and Engineering Program |
| GSN | global seismographic network |
| GT | ground truth |
| GTx | ground truth information of accuracy x km |
| HDC | hypocentroidal (or hypocentral) decomposition |
| HE | high explosive |
| HPGe | high purity germanium |
| HPXe | high-pressure xenon |
| HydroCAM | Hydroacoustic Coverage Assessment Model |
| Hz | hertz |
| IAEA | International Atomic Energy Agency |
| IASPEI | International Association of Seismology and Physics of the Earth's Interior |
| iasp91 | standard earth model |
| IDA | International Deployment of Accelerometers |
| IDC | International Data Centre |
| IDG | Russian Institute for the Dynamics of the Geospheres |
| ILS | iterative least squares |
| IMS | International Monitoring System |
| InfraMAP | Infrasound Modeling of Atmospheric Propagation |
| InSAR | Interferometric Synthetic Aperture Radar |
| IRIS | Incorporated Research Institutions for Seismology |
| IRP | integrated research product |
| ISC | International Seismological Centre |
| ISTC | International Science and Technology Center |
| JHD | joint hypocenter determination |
| KB | Knowledge Base |
| KBCIT | Knowledge Base Calibration Integration Tool |
| KMA | Korean Meteorological Administration |
| KNDC | Kazakhstan National Data Center |
| LANL | Los Alamos National Laboratory |
| LBNL | Lawrence Berkeley National Laboratory |
| LDA | linear discriminant analysis |
| LDEO | Lamont-Doherty Earth Observatory |
| LLNL | Lawrence Livermore National Laboratory |
| LVZ | low velocity zones |
| Matlab | commercial software application |
| MatSeis | seismic analysis package developed by SNL using Matlab |
| mb | body wave magnitude |
| Md | duration magnitude |
| MDAC | magnitude and distance amplitude corrections |
| MEMS | microelectromechanical systems |
| MIT | Massachusetts Institute of Technology |
| Ms | surface wave magnitude |
| MSE | mean squared error |
| MSU | Michigan State University |
| MUSIC | MULtiple Signal Classification |
| Mw | moment magnitude |
| NA-22 | Office of Nonproliferation Research and Development |
| NASA | National Aeronautics and Space Administration |
| NCEDC | Northern California Earthquake Data Center |
| NEIC | National Earthquake Information Center |
| NEM R&E | Nuclear Explosion Monitoring Research and Engineering |
| Nm | newton-meters |
| NNSA | National Nuclear Security Administration |
| NOAA | National Oceanic and Atmospheric Administration |
| NORSAR | Norwegian Seismic Array |
| NPE | Nonproliferation Experiment |
| NRL | Naval Research Laboratory |
| NTS | Nevada Test Site |
| PASSCAL | Program for the Array Seismic Studies of the Continental Lithosphere |
| PDF | portable document format |
| PNE | peaceful nuclear explosions |
| PNNL | Pacific Northwest National Laboratory |
| PrepCom | Preparatory Commission |
| PSD | power spectral density |
| PSU | Penn State University |
| Q | Seismic Q factor (reciprocal of attenuation) |
| RASA | Radionuclide Aerosol Sampler Analyzer |
| RCA | reciprocal cluster analysis |
| REB | Reviewed Event Bulletin - an IDC report |
| RF | receiver functions |
| RGA | residual gas analyzer |
| RMS | root mean square (errors) |
| ROC | receiver operating characteristic |
| RSS | residual sum of squares |
| SAC | seismic analysis code |
| SBIR | Small Business Innovation Research |
| SCSN | Southern California Seismic Network |
| SEM | spectral element method |
| SLU | Saint Louis University |
| SMDC | Space Missile Defense Command (Army) |
| SNL | Sandia National Laboratories |
| SNR | signal-to-noise ratio |
| SOFAR Channel | SOund Fixing And Ranging - primary sound channel in the ocean |
| SP | short period |
| STA/LTA | short-term average/long-term average |
| SVD | singular value decomposition |
| T* (t-star) | A measure of the "damping" or attenuation along a path. T* is the ratio of the travel time along a ray path to the average Q (seismic "quality" factor) along it. |
| T-phase | hydroacoustic phase |
| UCB | University of California, Berkeley |
| UCSD | University of California, San Diego |
| UNE | underground nuclear explosions |
| UNR | University of Nevada, Reno |
| USAEDS | United States Atomic Energy Detection System |
| USGS | United States Geological Survey |
| USNDC | United States National Data Center |
| WSMR | White Sands Missile Range |