Important

This ShakeMap 3.5 Manual is deprecated. Please see the ShakeMap 4 Manual.

9. Glossary

Abbreviations, acronyms, and initialisms used in this report

ANSS

Advanced National Seismic System: A USGS initiative to provide seismic monitoring for at-risk regions of the United States

California EMA

The California Emergency Management Agency (formerly the California Office of Emergency Services)

DYFI

Did You Feel It?

EHP

USGS Earthquake Hazard Program

ENS

Earthquake Notification System: earthquake notifications via text/email from USGS’s Earthquake Hazard Program

FEMA

Federal Emergency Management Agency: part of the U.S. Department of Homeland Security

GIS

Geographic Information System

GMICE

Ground-Motion–Intensity Conversion Equation

GMPE

Ground-Motion Prediction Equation

GSM

Global ShakeMap

HAZUS

HAZards US: a loss-estimation program developed by FEMA

IM

Intensity Measure: often used as a generic reference to Peak Ground Motions

IPE

Intensity Prediction Equation

ISO

International Standards Organization

MMI

Modified Mercalli Intensity

NEIC

the National Earthquake Information Center; part of the USGS, located in Golden, Colorado

PAGER

Prompt Assessment of Global Earthquakes for Response

PGA

Peak Ground Acceleration

PGM

Peak Ground Motion: a generic term for PGA and PGV

PGV

Peak Ground Velocity

USGS

the United States Geological Survey, a bureau of the U.S. Department of the Interior.