Welcome to the California Real Time Network (CRTN).
Please read the Description and Data Policy pages before using CRTN data.
CRTN is a collaboration of efforts in southern California (
Riverside County -Metropolitan Water District,
San Diego County, Los Angeles County
USGS Pasadena and others),
Central Valley Spatial Reference Network
UC Berkeley Seismo Lab's BARD
array in northern California,
and Earthscope's Plate Boundary Observatory at UNAVCO (PBO
Click on the labels below to zoom in on some different sub-networks.
Map - Current CRTN Status
(Updates automatically every 5 minutes)
Active CRTN Stations - Dark Blue: up Red: down
Planned Stations - Light Blue, Light Purple
Caltrans Central California Districts