Permanent Land Sites
2022-02-08 13:09:07.0 [tstevens] update Definition (Seismological stations: Stations that measure seismic activity.); update Definition (The American Heritage Dictionary of the English Language, Fourth Edition Copyright 2000 by Houghton Mifflin Company);
2021-11-17 14:13:27.0 [tstevens] Move Concepts delete broader relation (null); add broader relation (SEISMOLOGICAL STATIONS [182fc560-a2b1-4c9d-9acf-febe0e1bf179,826012] - Permanent Land Sites [0ec10fd9-492c-498a-b6d8-e2840cc3643b,835887]);
Seismological stations: Stations that measure seismic activity.
SEISMOLOGICAL STATIONS