The Collaborative International Dictionary of English v.0.48:
Seismography \Seis*mog"ra*phy\, n. 1. A writing about, or a description of, earthquakes. [1913 Webster] 2. The art of registering the shocks and undulatory movements of earthquakes. [1913 Webster]WordNet (r) 3.0 (2006):
seismography n 1: the measurement of tremors and shocks and undulatory movements of earthquakes